Cetma Taras Fins for Dynamic and Deep Freediving

The Taras fins by Cetma are specifically designed for dynamic freediving and deep freediving, delivering an efficient, compact fin stroke thanks to their design. Weight distribution is concentrated in the foot pocket area, promoting quick thrust and excellent control during the dive.

Technical Features

• Material: blade made from 100% Pre-preg carbon to ensure lightness and optimal stiffness.
• Design: smooth, rounded lines with a pronounced foot-to-blade angle, designed to maximize thrust transmission efficiency.
• Blade dimensions: 650 x 190 mm, balanced to provide fluidity and responsiveness in the water.
• Fit: high-quality rubber foot pockets, ergonomic and comfortable, with a snug fit to minimize power loss.
• Available Sizes: 39/40, 41/42, 43/44, for a precise, secure fit on the foot during dives.

Comfort and Functionality

Taras foot pockets are made with an ergonomic mold in high-quality rubber that ensures lasting comfort even during extended dives. The snug fit, preferred for competition, optimizes force transfer from the foot to the blade, reducing any energy dispersion and increasing the power generated with every fin kick.

Applications for Freediving and Spearfishing

Designed for freedivers engaged in spearfishing and dynamic freediving disciplines, Taras fins ensure efficient thrust transmission, limiting muscle fatigue and allowing better energy management during descent and horizontal underwater swimming.

Cetma Taras Fins for Dynamic and Deep Freediving

The Taras fins by Cetma are designed specifically for dynamic and deep freediving, with a focus on maximum thrust-transfer efficiency and a fast, controlled fin stroke.

Technical Features

• 100% pre-preg carbon construction for lightweight performance, high responsiveness, and mechanical strength.
• Blade structure measuring 650 x 190 mm, optimized for hydrodynamic water displacement with minimal resistance.
• High foot-to-blade angle, engineered to improve fin-stroke efficiency and promote direct power transmission.

Design and Comfort

The fins’ soft, rounded lines distribute weight mainly in the foot pocket area, contributing to a fast fin stroke with reduced amplitude. The foot pocket, produced from a high-quality rubber mold, ensures ergonomics and comfort, while maintaining a snug fit to minimize power loss and maximize thrust effectiveness.

Available Sizes

• 39/40
• 41/42
• 43/44

Pairings

The fins are paired with white Taras foot pockets, designed to ensure precise trim and a high-performance fit during freediving and competition sessions.

Lotus Carbon Fins - Cetma Composites

The Lotus Carbon Fins by Cetma Composites are a true revolution in the world of freediving and spearfishing. Born from the research and experience gained with the renowned Taras bifins, the Lotus Carbon were designed to deliver the same high-level performance with lower energy expenditure: every freediver’s dream—swimming with power and efficiency while feeling as if you have nothing on your feet.

100% Pre-Preg Carbon Blade

The Lotus Carbon Blade is made from 100% Pre-Preg carbon fiber, produced with hot-melt impregnation systems and micro-toughened tetra-functional resin. The proprietary 3D-Tech production process takes place under high pressure, high temperature, and vacuum, ensuring a component with 0% voids, free from defects and with a consistent fiber/resin ratio across the entire blade. The result is an extremely high-quality structure, with maximum specific stiffness and long-lasting durability.

FEM Design and Hydrodynamic Optimization

The Lotus Carbon blade design is optimized through finite element method (FEM) engineering, an advanced engineering technology that allows stiffness and mass to be distributed in order to “tune” the blade to natural frequencies close to those of the finning stroke, triggering the phenomenon of resonance. The result is very low muscular effort combined with superior propulsion and acceleration. The blade features a 30° angle, ideal for delivering maximum thrust in both indoor (pool) and outdoor (open water) settings, with intermediate stiffness suitable for any finning style and any diver weight.

Lotus Foot Pocket in Natural Rubber

The Lotus Carbon Fins are paired with the Lotus Foot Pocket, developed with exceptional commitment in terms of design and technology. Made from high-quality natural rubber, it features low weight and extraordinary softness, ensuring incredible comfort without compromising performance. The Lotus Foot Pocket fits all Sizes perfectly, including smaller sizes starting from 35-36, ideal for women or anyone with smaller feet. Pairing with neoprene socks is recommended.

Modular System: One Foot Pocket, a Thousand Blades

The key distinctive advantage of the Lotus Carbon Fins is their modularity. The Lotus foot pockets are screwed directly onto the Blade, allowing you to change the Blade without replacing the Foot Pocket. Anyone who purchases the Lotus Carbon can upgrade at any time to any other Cetma Composites Blade — including carbon — without having to purchase the Foot Pocket again. A flexible, cost-effective system designed to grow with the diver’s needs.

Suitable for Beginners and Experts

Thanks to their modularity and the different types of Lotus Carbon Blades available, these Fins are the ideal choice both for those approaching freediving for the first time and for experienced athletes seeking high-level performance. Designed, engineered, and manufactured entirely in Italy by Cetma Composites, they represent excellence in the sector through the combination of advanced technology, comfort, and performance.

Technical Specifications

• Blade material: 100% Pre-Preg carbon fiber with micro-toughened tetra-functional resin
• Production technology: 3D-Tech — high pressure, high temperature, vacuum — 0% voids
• Design: FEM (Finite Element Method) for optimal stiffness distribution
• Blade angle: 30°
• Stiffness: intermediate, suitable for any weight and finning style
• Foot Pocket material: high-quality natural rubber
• Foot Pocket Sizes: available in all Sizes starting from 35-36
• Attachment system: Foot Pocket screwed onto the Blade (modular system)
• Use: freediving, spearfishing, pool training
• Production: 100% Made in Italy
• Shipping: Blade and Foot Pocket shipped separately to prevent damage during transport

PROtech Fins for Freediving

The PROtech fins are designed for technical freediving, developed through a dedicated study of hydrodynamic flows and equipped with 3D geometries optimized to adapt to the body’s natural movement, ensuring efficiency and fluidity throughout the fin stroke.

Design and Comfort

The right/left anatomical foot pocket ensures a precise fit for the foot, eliminating pressure points and energy loss. The one-piece structure integrating blade and foot pocket provides immediate, direct thrust transmission, improving movement responsiveness in the water.

Technical Features and Materials

The blades are made from 100% multilayer laminated carbon, engineered for progressive energy release without vibration, ensuring a smooth, continuous, and highly technical fin stroke. The anti-turbulence convex profiles of the water rails improve hydrodynamic stability, while the side stabilizers provide controlled buoyancy, optimizing trim and stability during the dive.

Technical Specifications

• Complete fin dimensions (EU size 42/43): 890 x 190 mm
• Blade material: T700 multilayer carbon
• Blade Stiffness: Medium/Soft
• Water rails color: Black
• Water rails type: Anti-turbulence convex profile
• Available EU Sizes: 36/37 – 38/39 – 40/41 – 42/43 – 44/45
• Available US/Canada Sizes: 4.5/5 – 6/6.5 – 7.5/8 – 9/10 – 11/12

Dive-R Innegra V2 Blades for Freediving and Spearfishing

The Dive-R Innegra V2 Blades are made with advanced Spread Tow technology, integrating carbon and Innegra fibers, a high-performance, water-repellent material. This blend allows greater deformation than traditional carbon fins, offering improved impact absorption and superior durability, ideal for freediving and spearfishing use.

The blades are available in two stiffness options, Soft and Medium, to suit different diving styles and ensure effective thrust transfer during the kick cycle.

Materials and Construction

• Premium carbon fibers combined with innovative materials such as Innegra fibers, Kevlar and copper
• Aerospace-grade resins expertly applied for a strong, lightweight structure
• Special fabrics with high capacity to absorb saturation and mechanical loads

These technical features ensure a blade with a shape and structure that remain stable over time, without losing power even after long periods of use, ensuring smoothness and efficiency in the water.

Mounting Recommendations

To take full advantage of the technical characteristics of the Dive-R Innegra V2 Blades, mounting them on lightweight foot pockets with short side rails is recommended, such as:

• C4 Foot Pockets
• Mares X-Wing

Alternatively, for those using long side rails, Imersion Foot Pockets are recommended, thanks to their softness, which follows the movement of the blade without limiting its efficiency.

Assembly Service

A dedicated Blade / Foot Pocket Assembly service is available for professional, optimized mounting.

Performance and Durability

DiveR, supported by testing with freediving and spearfishing professionals, has developed these blades to ensure reduced muscle effort and greater efficiency in thrust transfer. The combination of materials and design increases mechanical performance without sacrificing comfort and mechanical strength, key elements for freediving.

DiveR Blades are recognized on the market for their reliability, long-term durability, and variety of designs and colors, making them a distinctive, highly specialized product for freediving and spearfishing enthusiasts.

Custom mounting: on request, DiveR Blades can be mounted on any foot pocket model.

Dive-R Innegra Red Blades: Cutting-Edge Technology and Materials

The Dive-R Innegra Red blades are made with an advanced blend of carbon fiber and Innegra fiber, using Spread Tow technology developed by the industry-leading company. This combination provides greater deformation capacity than traditional carbon blades, ensuring powerful, smooth thrust transmission.

Innegra fiber is designed to effectively absorb impacts and deformation, offering exceptional mechanical strength and water repellency. These features give the blades excellent durability in the water and optimal efficiency during finning.

Variants and Compatibility

• Available in Soft and Medium stiffnesses to suit different freediving and spearfishing styles.
• Recommended for mounting on lightweight foot pockets such as C4 Foot Pockets or Mares X-Wing with short rails, to fully take advantage of the blades’ responsiveness.
• Alternatively, the Imersion Foot Pockets provide excellent elasticity and comfort, following the movement without limiting efficiency.

For convenience, a blade and foot pocket assembly service is available and can be easily added to the cart.

Tested Design and Innovative Materials

DiveR developed this blade design in collaboration with freedivers and spearfishers, carrying out testing over more than 15 years. The result is a product recognized for its balance of power, smoothness, and reduced muscular effort.

The blades combine special resins and high-quality aerospace fabrics, including:

• Special fiberglass
• Premium carbon fibers
• Technical blends such as carbon and copper, carbon and Kevlar, and carbon with Innegra fiber

These materials ensure high responsiveness during finning, transmitting energy efficiently and reducing muscle fatigue even for those getting into freediving or spearfishing.

Durability and Consistent Performance

The Dive-R blades maintain their mechanical and thrust characteristics over time, with no loss of power after extended periods of use. This consistency is a crucial advantage in spearfishing and freediving, where equipment reliability is essential.

Customization and Mounting Options

The blades are available in different colors and designs, offering a wide range of aesthetic choices. Custom mounting is also available on any type of foot pocket with different profiles, made on request for a small surcharge. For more details, contact technical support.

To get the most out of the technical features of the DiveR Blades, we particularly recommend using them with the C4 400 Foot Pockets, featuring short rails and a lightweight design, ideal for maximizing thrust transmission efficiency.

Dive-R Innegra Red Blades - Short: advanced structure and materials for freediving and spearfishing

The Dive-R Innegra Red Blades - Short are made with cutting-edge Innegra fiber technology, an innovative blend of carbon fiber and Innegra. This composition allows the blades to achieve greater controlled deformation than traditional carbon fins, increasing mechanical strength and impact absorption without compromising thrust transmission in the water. Innegra fiber, naturally water-repellent, improves durability and reliability during dives.

Composite materials and proven design

The blades are built with an expert mix of specific resins and aerospace-grade fabrics, including special fiberglass, premium carbon, copper, kevlar, and Innegra. These materials give the blades:

• High responsiveness and efficient fin-stroke power transfer
• Minimized muscular effort thanks to mechanical optimization
• Consistent performance over time without degradation

Optimized for different freediving and spearfishing styles

Available in different stiffness options (Soft and Medium), the Dive-R blades adapt to various diving styles and personal preferences. Choosing the right foot pocket is essential to fully exploit the dynamic characteristics of these blades. We recommend mounting them on lightweight foot pockets with short rails, such as C4 Foot Pockets or Mares X-Wing, which ensure freedom of movement and smooth power transfer. Alternatively, the particularly soft Imersion Foot Pockets effectively follow the flex of the blades without limiting efficiency.

Additional services and customization

A professional blade-mounting service is available for any foot pocket through the dedicated assembly option, ensuring an optimal technical and ergonomic fit. Custom rails can be installed on request to further tailor the hydrodynamic behavior of the blades according to the specific needs of the freediver or spearfisher.

Dive-R Innegra Red-R Blades

The Dive-R Innegra Red-R blades are made with sophisticated Spread Tow technology, using Innegra fiber combined with high-quality carbon fibers. This innovative blend allows greater deformation than traditional carbon blades, ensuring superior absorption of impacts and mechanical stress, with exclusive water-repellent characteristics.

Available in two stiffness levels, Soft and Medium, these blades provide an efficient response adapted to different freediving and spearfishing styles, offering an optimal balance between elasticity and stiffness for smooth, responsive thrust transmission.

Materials and Technology

• Blend of special resins applied with high-level artisanal techniques
• Aerospace-grade fabrics composed of special fiberglass, premium carbon, carbon-copper, carbon-kevlar, and carbon-Innegra fibers
• Water-repellent structure with high mechanical resistance to ensure durability and consistent performance

This combination of materials reduces effort during finning, increasing efficiency and fluidity of movement underwater—essential characteristics for freedivers and spearfishers.

Assembly Recommendations

To fully take advantage of the capabilities of DiveR blades, we recommend mounting them on lightweight, low-profile foot pockets that do not limit freedom of movement and blade responsiveness, such as:

• C4 Foot Pockets
• Mares X-Wing with short side rails
• Imersion Foot Pockets, thanks to their softness, which effectively follows the flex of the blade

A blade/foot pocket assembly service is available for professional, optimal mounting.

Experience and Performance

The design of DiveR blades, developed and tested for over 15 years together with freediving and spearfishing professionals, is recognized for maintaining consistent performance over time, with no loss of power even after extended use. This product stands out for its ability to improve finning efficiency and significantly reduce muscle fatigue.

Variants and Customization

The blades are available in multiple colors and designs, offering customized solutions for different aesthetic and functional needs. Upon request, DiveR blades can be mounted on any type of foot pocket, always ensuring an optimal technical pairing.

Blades Dive-R Innegra Carbon

The Blades Dive-R Innegra Carbon are made with innovative Spread Tow technology using Innegra fiber, a composite material that combines carbon fibers and Innegra to give the fin greater flex deformation than traditional carbon blades.

This high-tech fiber is designed to absorb impacts and deformation to a greater extent than other materials, while also providing water-repellent properties that are essential in the underwater environment. The blades are available in two stiffnesses: Soft and Medium, allowing you to choose the rigidity best suited to your spearfishing or freediving style.

Materials and construction

• Blend of resins and aerospace-grade fabrics specifically combined to maximize responsiveness and lightness
• Special fiber composition: premium carbon, high-performance fiberglass, carbon and copper combinations, carbon and Kevlar, and carbon with Innegra
• Optimized thrust transmission and reduced muscle effort during finning

Compatibility and recommended assembly

To take full advantage of the blades’ responsiveness and precision, installation on lightweight foot pockets with short rails is recommended, such as Foot Pockets C4 or Mares X-Wing. Alternatively, the Foot Pockets Imersion are also suitable, as their high flexibility follows the movement of the blades without limiting hydrodynamic efficiency.

A professional blade-to-foot-pocket assembly service is available through the following Blades / Foot Pockets assembly link.

Performance and reliability

The Dive-R blade design, developed and tested for over 15 years in collaboration with freediving and spearfishing professionals, ensures consistent power transfer with no loss of effectiveness over time. The combination of high-performance materials provides smooth finning and efficient thrust transmission, reducing fatigue and improving underwater control.

Compared to other similar products, Dive-R blades maintain their stiffness and responsiveness after extended use, with no weakening or decline in mechanical performance. Available in multiple color and design variants, they combine functionality and customization for an optimal underwater experience.

Additional information

Note: Dive-R blades can be mounted on any type of foot pocket upon request.

Dive-R Innegra Carbon Blades

The Dive-R Innegra Carbon blades are made with advanced Spread Tow technology, incorporating Innegra fibers together with carbon to create a composite capable of greater deformation than traditional carbon blades. This high-tech material provides excellent impact resistance and natural water repellency, improving durability in the water.

Available in two stiffness options, Soft and Medium, they are designed to adapt to different freediving and spearfishing styles, optimizing thrust transmission and reducing muscle fatigue.

Recommended pairing with foot pockets

• Lightweight foot pockets with short side rails, such as C4 Foot Pockets and the Mares X-Wing, to fully take advantage of the blades’ responsiveness and efficiency.
• Foot pockets with long side rails, such as Imersion Foot Pockets, featuring excellent softness to follow the movement without compromising energy transfer.

A blade/foot pocket assembly service is available for professional fin assembly.

Materials and construction technology

DiveR blades are developed with a combination of high-quality resins and aerospace-grade fabrics, including a mix of special fibers such as fiberglass, carbon, copper, Kevlar, and Innegra. This makes it possible to achieve:

• High responsiveness and thrust transmission thanks to a calibrated elastic response
• Reduced muscle effort even during extended breath-hold sessions
• Optimal mechanical strength maintained over time with no loss of power
• Water repellency to maintain stable performance in the water

Testing and reliability

DiveR has tested this design with freediving and spearfishing professionals and enthusiasts for over 15 years, confirming the product’s technical superiority. Despite numerous imitations, no competitor has replicated the consistency of the original performance, which remains stable even after years of continuous use.

Customization and availability

DiveR blades are offered in multiple stiffness options and in a wide range of colors and designs, customizable to meet the specific needs of freedivers and spearfishers.

Assembly of DiveR blades on any type of foot pocket is available upon request.

Dive-R Carbon Copper Blades for Freediving and Spearfishing

The Dive-R Blades in Carbon Copper are made with carbon fiber integrated with copper, offering approximately 15% greater lightness compared to traditional DiveR carbon blades. This advanced material delivers a snappier, more efficient kick, optimizing thrust transmission and reducing muscle fatigue during freediving and spearfishing.

Available in two different stiffnesses, Soft and Medium, the blades adapt to different freediving needs and spearfishing styles.

Assembly and Compatibility

To fully take advantage of the hydrodynamic qualities and responsiveness of the Dive-R blades, we recommend mounting them on lightweight foot pockets with short side rails, such as C4 Foot Pockets or Mares X-Wing. Alternatively, using the Imersion Foot Pockets, thanks to their high softness, allows for a smoother blade movement without compromising thrust transmission efficiency.

You can add the Blade / Foot Pocket Assembly service directly to your cart for a customized professional installation.

Innovative Materials and Construction

DiveR blades are the result of over 15 years of development together with freedivers and spearfishers, using combinations of advanced resins and aerospace fabrics. The composition includes special fiberglass, premium-grade carbon combined with copper, Kevlar, or Innegra fibers, ensuring an excellent balance between light weight and mechanical strength.

This composite structure ensures:

• High responsiveness and smoothness during the kick
• Reduced muscle effort while maintaining consistent power even after prolonged use
• Durability with no loss of performance over time

Technical Features and Benefits

• Carbon Copper material, exclusive and sophisticated
• Available in two stiffnesses to suit different freediving and spearfishing styles
• Customizable mounting on any foot pocket to optimize comfort and efficiency
• Wide range of colors and designs for technical and aesthetic customization

Dive-R Blades are recognized as one of the most effective products on the market for freediving and spearfishing, thanks to careful materials research and the technical balance between light weight, responsiveness, and mechanical strength—key elements for efficient and comfortable diving.

L-1090 Freediving Fins 100% Carbon - 200 Line C4

The L-1090 Freediving fins are made entirely from carbon and are part of C4’s brand-new 200 line, designed specifically for freediving and spearfishing.

Materials and Construction

The blade is made with a progressive lamination of four different types of Japanese carbon arranged across seven unidirectional layers. This layup optimizes the balance between reactivity and mechanical strength, ensuring high efficiency in power transmission.

The finish features exposed carbon with a white decoration, giving it a technical and functional look.

Blade Features

• Asymmetric water rails bonded and overmolded using high pressure and temperature, allowing the polymer to fuse perfectly with the blade composite. This technology prevents delamination and ensures long-lasting protection in the area near the foot.
• The variable geometry of the water rails is designed to minimize pressure losses along the entire length of the blade and improve fluidity in the water.
• Hydrodynamic anti-turbulence flap, designed to optimize stability and reduce vibration during finning.
• Blade dimensions: 940 x 192 mm, ideal for an optimal balance between thrust and maneuverability.

Foot Pocket

The fins are fitted with the 200 foot pocket, featuring:

• Black thermoplastic elastomer upper for superior elasticity and comfort.
• White polypropylene sole, durable and lightweight, promoting foot stability.

Available Stiffnesses and Sizes

• Blade stiffnesses: 20 super soft, 25 soft, 30 medium, to suit different finning styles and diving conditions.
• Available in 7 sizes: 36/37, 38/39, 40/41, 41/42, 42/43, 43/44, 44/45.

S-990 Firestone Fins in 100% Carbon - 200 Line C4

The S-990 Firestone are an advanced solution for freediving and spearfishing, made from 100% carbon and part of C4’s 200 line, designed to deliver an optimal combination of lightness, responsiveness, and mechanical strength.

Structure and Materials

The blade features a progressive lamination of 4 different types of Japanese carbon, arranged in 7 unidirectional layers. This technical construction allows for excellent optimization of thrust transmission and blade durability.

The blade tip is shaped with a swallowtail profile, a design that improves finning fluidity and hydrodynamics, reducing water resistance during freediving movement.

Water Rails and Protection

The water rails are integrated through bonding and high-pressure, high-temperature overmolding, a process that fuses the polymer with the blade’s carbon composite, eliminating the risk of detachment during dives.

The variable geometry of the water rails has been engineered to:

• Protect the blade in the area adjacent to the foot
• Minimize load losses along the entire length of the blade

Foot Pocket and Sizes

The fins are fitted with the 200 foot pocket, made with a black thermoplastic elastomer upper and a red polypropylene sole, designed to ensure comfort, fit, and durability in the water.

The blade dimensions are 770 x 192 mm, optimized to ensure efficiency and control during finning.

Stiffnesses and Available Sizes

The S-990 Firestone fins are available in three stiffness levels to suit different thrust and control needs in freediving:

• 25 Soft
• 30 Medium
• 40 Hard

The sizes cover a wide range:

• 36/37
• 38/39
• 40/41
• 41/42
• 42/43
• 43/44
• 44/45

Fins PULSE - Cetma Composites

The PULSE Fins by Cetma Composites represent a true revolution in the world of spearfishing and training fins. Designed and manufactured 100% in Italy, the PULSE introduce Hyperbolic Curvature — an exclusive geometry that delivers maximum thrust with minimal effort, redefining the standards of responsiveness and propulsion for the most demanding spearfishers and freedivers.

The Hyperbolic Revolution

The PULSE blade design stands out for its proprietary hyperbolic curvature, engineered to optimize energy transfer with every kick. This advanced geometry ensures immediate response and superior propulsion, making it the ideal choice for both high-performance spearfishing and intensive training sessions.

Aerospace Technology: ZDF and OOT

• ZDF Excellence — Zero Defects: proprietary aerospace technology by Cetma Composites that guarantees a blade free from structural imperfections, with a constant and controlled fiber/resin ratio across the entire surface.
• OOT — Out-of-Autoclave Technology: exclusive production process developed by Cetma Composites that achieves the lamination quality and density typical of aerospace components without using a traditional autoclave, ensuring extreme lightness and exceptional strength.

High-Performance Materials

• HM Carbon (High Modulus): ultra-high-stiffness fibers for a precise, powerful response throughout every finning cycle.
• HR Carbon (High Resistance): high-toughness fibers to ensure structural strength and long-lasting durability even under the most demanding use conditions.
• Hot Melt Pre-preg: hot impregnation system that ensures optimal resin distribution within the blade structure, eliminating voids and discontinuities.

FEM Design: Engineering at the Service of Performance

The geometry of the PULSE fins is optimized through finite element analysis (FEM — Finite Element Method), an advanced design methodology derived from aerospace and structural engineering. This approach allows stiffness to be precisely distributed along the entire blade, creating an optimal deformation profile that maximizes hydrodynamic efficiency and minimizes the user’s muscular fatigue.

100% Made in Italy

The PULSE Fins Cetma Composites are entirely designed and manufactured in Italy, reflecting the manufacturing excellence and technological know-how of Cetma Composites, a global leader in the production of carbon equipment for freediving and spearfishing.

Technical Specifications

• Blade geometry: exclusive hyperbolic curvature
• Material: 100% HM Carbon (High Modulus) + HR (High Resistance)
• Lamination: Hot Melt Pre-preg
• Production technology: OOT (Out-of-Autoclave Technology) — Cetma Composites
• Build quality: ZDF (Zero Defects) — aerospace standard
• Design: FEM-optimized (finite element analysis)
• Origin: 100% Made in Italy
• Ideal use: spearfishing, freediving training

Dive-R Carbon Blades for Freediving and Spearfishing

The Dive-R Carbon Blades are made entirely in Australia using rigorous manufacturing techniques to ensure quality, precision, and reliability in every detail. These fins have been developed to meet the specific needs of the most experienced freedivers and spearfishers, delivering strength and durability in demanding underwater environments.

Materials and Structure

The blade construction uses top-grade carbon fibers combined with high-quality resins that ensure optimal elastic rebound. Advanced materials are used, such as:

• Special fiberglass
• Innovative blends of carbon and copper, carbon and Kevlar, carbon and Innegra fibers

This combination gives the blades excellent mechanical strength, light weight, and durability even under continuous stress, maintaining their characteristics unchanged over time.

Efficiency and Comfort in the Water

Dive-R blades reduce muscle effort thanks to superior elastic rebound and efficient thrust transmission, improving the smoothness and responsiveness of the fin stroke during freediving and spearfishing. Available in two stiffnesses, Soft and Medium, they allow you to adapt rigidity to different diving techniques.

Compatibility and Assembly

To fully benefit from the technical features of the Dive-R Blades, installation on lightweight foot pockets is recommended, such as the C4 Foot Pockets or the Mares X-Wing with short rails. The foot pocket design directly affects thrust transmission efficiency and comfort.

Alternatively, for those who prefer long rails, the Imersion Foot Pockets are recommended, as their softness smoothly supports the movement of the blades without compromising efficiency.

A dedicated blade and foot pocket assembly service is also available for optimal, professional installation.

Durability and Performance Guarantee

After more than 15 years of testing and continuous development, Dive-R Blades retain their performance characteristics without visible degradation after intensive use in freediving and spearfishing. Their design and innovative materials ensure consistent stiffness and responsiveness over time, setting them apart from other similar products on the market.

Customization and Options

Dive-R Blades are available in a wide range of colors and designs, allowing every freediver to choose the option best suited to their technical and aesthetic needs. The blades can be mounted on any type of foot pocket, further customizing the spearfishing and recreational freediving experience.

Dive-R Ultra Carbon Blades for Freediving and Spearfishing

The Dive-R Blades in Ultra Carbon are an Australian-made product manufactured with rigorous construction techniques, designed to deliver quality, precision, and durability for freediving and spearfishing.

These fins are used internationally by spearfishers and freedivers with high technical standards, capable of withstanding significant mechanical stress underwater while maintaining consistently high performance over time.

Materials and Construction Technologies

The DiveR carbon blades are made with premium-grade carbon fibers combined with selected resins to ensure superior elastic rebound and efficient power transfer. The special Spread Tow weave—a “wide weave”—helps minimize energy loss, optimizing every fin stroke.

They are available in two distinct stiffness levels, Soft and Medium, to suit different finning styles and effort levels.

Compatibility and Assembly

To fully exploit the qualities of the DiveR blades, mounting them on lightweight foot pockets with short rails is recommended, such as C4 Foot Pockets or the Mares X-Wing.

Alternatively, the Imersion Foot Pockets provide excellent softness, following the movement of the fin without limiting thrust-delivery efficiency.

A dedicated blade/foot pocket assembly service is also available for an optimal, customized setup.

Innovation and Composite Materials

DiveR developed this model by combining aerospace materials and advanced composites such as carbon and copper blends, carbon and Kevlar, or carbon and Innegra fibers. These technical solutions improve mechanical strength, lightness, and finning fluidity with greatly reduced muscular effort.

The result is an extremely precise and responsive blade, capable of maintaining performance over time without any loss of effectiveness, even after prolonged use while freediving.

Customization and Durability

• Wide range of colors and designs to customize the setup according to technical and aesthetic preferences.
• Original power and stiffness retention guaranteed for over 8 years of production, with no reported structural degradation.
• Suitable for both experienced freedivers and those looking for a high-quality technical product for spearfishing.
• Assembly available on any foot pocket model upon request, to maximize compatibility and comfort.

100% Pre-preg Carbon Mantra Fins for Freediving and Spearfishing

The Mantra fins are the flagship model from Cetma Composites, specifically designed for freedivers and spearfishers who demand high-level technical equipment. Made entirely from 100% Pre-preg carbon, the blades are built with an exclusive hot-melt impregnation technology using tetra-functional resin, applied under high pressure, high temperature, and vacuum conditions. This process ensures a defect-free blade, with a consistent fiber/resin ratio across the entire surface.

Design and Technical Features

The engineered distribution of stiffness and mass in the blade allows its natural frequency to be tuned to the fin-kick frequency range, leveraging the resonance effect to optimize thrust transmission and responsiveness. This advanced design improves the smoothness and efficiency of the kick during freediving and spearfishing.

Components and Comfort

• Assembly with S-Wing foot pockets without side rails, increasing comfort and freedom of movement.
• Constant-section water rails with a height of 10 mm, designed to improve hydrodynamic hold and stability in the water.

Available Variants

• Stiffnesses: 20 super soft, 25 soft, 30 medium, allowing a calibrated choice based on kick style and the required stiffness level.
• Sizes: 39/40, 41/42, 43/44, 45/46, to perfectly fit different foot sizes.
• Blade dimensions: 742 x 195 mm, sized to provide an effective balance between thrust and maneuverability.
• Available graphics: gold, white, magenta.

Mantra Fins in 100% Pre-preg Carbon for Freediving and Spearfishing

The Mantra fins are the flagship model from Cetma Composites, specifically designed for freedivers and spearfishers who demand high-level technical equipment. Made entirely from 100% Pre-preg carbon, the blades are built with an exclusive hot-melt impregnation technology using tetra-functional resin, applied under high pressure, high temperature, and vacuum conditions. This process ensures a defect-free blade, with a consistent fiber/resin ratio across the entire surface.

Design and Technical Features

The engineered distribution of stiffness and mass in the blade allows its natural frequency to be tuned to the fin-kicking frequency range, leveraging the phenomenon of resonance to optimize thrust transmission and responsiveness. This advanced design improves the fluidity and efficiency of the fin stroke during freediving and spearfishing.

Components and Comfort

• Assembly with S-Wing foot pockets without side rails, to increase comfort and freedom of movement.
• Constant-section water rails with a height of 10 mm, designed to improve hydrodynamic hold and stability in the water.

Available Variants

• Stiffnesses: 20 super soft, 25 soft, 30 medium, allowing a calibrated choice based on finning style and the required stiffness level.
• Sizes: 39/40, 41/42, 43/44, 45/46, to fit different foot sizes perfectly.
• Blade dimensions: 742 x 195 mm, sized to ensure an effective balance between thrust and maneuverability.
• Available graphics: gold, white, magenta.

Mantra Fins in 100% Pre-preg Carbon for Freediving and Spearfishing

The Mantra fins are the flagship model from Cetma Composites, specifically designed for freedivers and spearfishers who demand high-level technical equipment. Made entirely from 100% Pre-preg carbon, the blades are built using an exclusive hot-melt impregnation technology with tetra-functional resin, applied under high pressure, high temperature, and vacuum conditions. This process ensures a defect-free blade, with a consistent fiber/resin ratio across the entire surface.

Design and Technical Features

The engineered distribution of stiffness and mass in the blade allows its natural frequency to be tuned to the finning frequency range, leveraging the phenomenon of resonance to optimize thrust transmission and responsiveness. This advanced design improves the smoothness and efficiency of the kick during freediving and spearfishing activities.

Components and Comfort

• Assembly with S-Wing foot pockets without side rails, to increase comfort and freedom of movement.
• Constant-section water rails with a height of 10 mm, designed to improve hydrodynamic hold and stability in the water.

Available Variants

• Stiffnesses: 20 super soft, 25 soft, 30 medium, allowing a calibrated choice based on kicking style and the required level of stiffness.
• Sizes: 39/40, 41/42, 43/44, 45/46, to fit different foot sizes perfectly.
• Blade dimensions: 742 x 195 mm, sized to ensure an effective balance between thrust and maneuverability.
• Available graphics: gold, white, magenta.

SPORTECH CARBON carbon freediving Fins

The SPORTECH CARBON are fins designed specifically for dynamic freediving and deep freediving, optimally balancing performance and ergonomic comfort. These fins deliver reliable efficiency during extended sessions, ensuring effective thrust transmission and a smooth kick while freediving.

Main technical features

• Open-heel silicone Foot Pocket: anatomical and soft, it provides an excellent fit for lasting comfort and greater freedom of movement.
• Right and left anatomical design: optimizes foot fit and improves kicking fluidity.
• Monobloc carbon structure: seamless, it allows continuous and efficient power transfer, increasing blade responsiveness.

Use and performance

Compared to the PROTech model, which is more geared toward competitive use, the SPORTECH CARBON are ideal for freedivers who need a versatile product, combining a high technical level with superior comfort. Their composition and construction make them suitable for frequent use, maintaining an excellent balance between lightness and mechanical strength while freediving.

Blades PULSE - Cetma Composites

The PULSE carbon blades by Cetma Composites are a true revolution in the world of spearfishing and water training. Designed and manufactured 100% Made in Italy, the PULSE introduce the Hyperbolic Curve: an exclusive geometry that delivers maximum thrust with minimal effort, redefining the concept of responsiveness for high-performance carbon blades.

Technology and Materials

The PULSE blades are built with a selection of aerospace-derived composite materials, chosen to ensure maximum hydrodynamic efficiency and the highest structural reliability in all conditions of use.

• 100% HM (High Modulus) and HR (High Resistance) Carbon: the optimal combination of stiffness and toughness for a blade that is responsive, reactive, and virtually indestructible.
• Hot Melt Pre-preg: the composite material is impregnated with hot-melt systems using high-performance resin, ensuring a consistent and optimal fiber/resin ratio across the entire blade surface.
• OOT Technology – Out-of-Autoclave Technology: an exclusive Cetma Composites production process that achieves the same quality standards as the aerospace industry without the use of an autoclave, optimizing control over the composite curing process.

ZDF Excellence – Zero Defects

The PULSE blades are produced with Cetma Composites’ proprietary ZDF (Zero Defects) technology. This aerospace-derived production standard ensures a component with 0% internal voids, free from structural defects and with a perfectly consistent fiber/resin ratio throughout the blade. The result is a blade that maintains its original mechanical characteristics over time, with no performance degradation.

FEM-Optimized Design

The geometry of the PULSE blades is the result of advanced design using finite element analysis (FEM – Finite Element Method). The structural simulation software used by Cetma Composites ensures optimal stiffness distribution, in order to reproduce a blade deformation profile that maximizes hydrodynamic efficiency during finning, both vertically and horizontally.

The Hyperbolic Revolution

The defining feature of the PULSE blades is the Hyperbolic Curve: a patented geometry that sets these blades apart from any other product currently on the market. Thanks to this shape, the blade delivers a unique biomechanical response, with instant responsiveness and powerful thrust from the very first kick. Ideal for spearfishing and intensive training sessions, the PULSE are designed for those seeking maximum performance without compromise.

Main Features

• Exclusive Hyperbolic Curve: maximum thrust with minimal effort
• 100% HM + HR Carbon: high elastic modulus and high mechanical strength
• Hot Melt Pre-preg: hot-melt impregnation for superior composite quality
• OOT Technology (Out-of-Autoclave): exclusive Cetma Composites aerospace production process
• ZDF Excellence – Zero Defects: 0% voids, defects, and structural discontinuities
• FEM Design: advanced finite element design for optimal hydrodynamic efficiency
• 100% Made in Italy
• Ideal for spearfishing and training

Carbon Pro Ultimate Fins - Pathos

The Carbon Pro Ultimate Fins by Pathos are high-performance complete fins for freediving and spearfishing, made with pure carbon fiber blades paired with the renowned Fireblade Foot Pockets. Designed for experienced and consistently trained divers, they offer an exceptional blend of lightness, responsiveness, and thrust power, making them ideal for medium-depth to deep dives and long surface swims.

100% Carbon Fiber Blades: High-Performance Double Weave

The blades of the Carbon Pro Ultimate are made from pure carbon fiber with a double fabric weave, a technical choice that is the performance core of this fin:

• Outer layer in 285-T4 4×4 twill carbon: eliminates roughness, cracks, and blade distortion, ensuring complete absorption of the epoxy resin and a structure with high breakage resistance.
• Inner layer in 285-T2 2×2 twill carbon: gives the blade immediate responsiveness and instant return with every kick.
• The selected carbon fibers, combined with the best epoxy resin, ensure stiffness, reliability, and long-lasting durability.

Double S-Curve Flex: The Most Efficient Geometry

The positioning of the internal carbon fiber layers is designed to generate, under pressure, a double S-shaped curve that develops evenly along the entire length of the blade, starting right from the connection with the foot pocket. This geometry is now considered the highest-performing solution for freediving blades because:

• It optimally distributes the power generated by the kick across the entire surface of the blade.
• It delivers a fast, powerful push off the bottom during deep dives.
• It significantly improves performance during surface swims, reducing muscular effort compared with previous models.

28° Angle: Maximum Performance for Trained Divers

The 28° angle is designed for experienced divers who maintain good physical condition and train consistently. This angle allows you to:

• Push off the bottom with power and no dead spots.
• Maintain a comfortable and efficient kick in all conditions.
• Achieve the best dynamic results in combination with the Fireblade Foot Pockets.

Convex Flap and Water Rails: Technical Details That Make the Difference

• Convex Flap blade tip: adds extra thrust in the final phase of the kick, reducing the workload on the legs and allowing you to use less power compared with previous models with a concave tip.
• Low, consistent water rails: work like side spoilers, creating a water channel that prevents the blade from slipping sideways and preserves valuable thrust energy with every kick.
• Smooth, friction-free glossy surface: reduces water resistance and optimizes the overall hydrodynamics of the fin.

Fireblade Foot Pockets: Record Lightness and Exceptional Comfort

The Carbon Pro Ultimate come complete with Pathos Fireblade Foot Pockets, made from vulcanized rubber with three different compounds:

• Soft on the toes and heel: maximum comfort throughout the dive.
• Medium on the side rails: allows the blade to move freely without restriction.
• Stiff on the metatarsal area and sole: stability and efficient thrust transmission with every kick.

The Fireblade weigh only 370 grams, and their extremely thin side rails allow the blade to work perfectly without tiring the leg. The fins are shipped pre-assembled and glued between blade and foot pocket, ready to use.

Stiffness Selection Guide

• Soft: recommended up to 65–70 kg body weight.
• Medium: recommended between 75 and 100 kg.
• Hard: recommended over 100 kg.

Fit Selection Guide

Anyone who wears size 41/42 shoes with a 3.0 mm sock should purchase the 42/44 fit.

Technical Specifications

• Blade angle: 28°
• Blade dimensions: 86 × 19 cm
• Foot Pocket: Pathos Fireblade in vulcanized rubber (3 compounds)
• Foot pocket weight: 370 gr
• Available stiffnesses: Soft – Medium – Hard
• Available Sizes: 36/38 – 38/40 – 40/42 – 42/44 – 44/46 – 46/48 – 48/50
• Fins supplied pre-assembled and glued

C4 x Marco Bonfanti MB002 Carbon Fins

The MB002 Fins are a new generation of T700 carbon fins developed by C4 in collaboration with champion Marco Bonfanti, designed specifically for freediving and spearfishing. Their key innovation lies in the Reverse Parabolic design, which moves the parabolic flex curve close to the foot rather than toward the tip.

Technical features and benefits

This structural change was made possible by in-depth research into carbon lamination, which made it possible to increase the thrust surface area compared to the hydrodynamic resistance surface. As a result, the MB002 deliver greater elastic deformation, increasing propulsion efficiency during the fin stroke.

Stiffer blades can therefore be used while maintaining the same physical effort as lighter blades, optimizing energy transfer and improving thrust without increasing fatigue.

Structure and materials

• Blade size: 874 x 195 mm, with total fin length (size 42/43) of 980 x 195 mm
• Material: high-quality T700 carbon, for an optimal balance between lightness and mechanical strength
• Convex-profile water rails along the full length of the blade: reduce lateral turbulence and improve water channeling, increasing hydrodynamic stability
• Water rail color: black; blade color: black-white with matte finishes for a clean, professional look
• Preformed 250 Foot Pocket with 3° angle to optimize force transfer and ensure comfort during the fin stroke

Available versions

• 7 available sizes: 36/37, 38/39, 40/41, 41/42, 42/43, 43/44, 44/45
• 3 blade stiffness levels to suit different thrust and fatigue requirements: 20 Super Soft, 25+ Soft, 30 Medium

The MB002 Fins are ideal for those looking for a long, precise blade with an elastic response engineered to optimize propulsion in freediving and spearfishing, combining advanced materials with an innovative design.

MB001 Carbon Fins for Freediving and Spearfishing

The MB001 fins are designed by C4 in collaboration with Marco Bonfanti, specifically developed for the needs of freedivers and spearfishers. Made from T700 carbon, they deliver an optimal combination of lightness, elasticity, and mechanical strength.

Reverse Parabolic Lamination Design and Technology

The main feature of the MB001 is the Reverse Parabolic: the parabolic flex curve is positioned close to the foot rather than at the tip, thanks to advanced lamination studies. This increases the thrust surface area in relation to hydrodynamic resistance, improving the mechanical behavior of the blade and significantly increasing propulsion.

The larger thrust surface makes it possible to use stiffer blades while maintaining the same level of effort, optimizing finning efficiency and performance in the water.

Technical Features of the Blade and Water Rails

• Blade size: 806 × 195 mm
• Fin size, size 42/43: 920 × 195 mm
• Material: T700 Carbon
• Available stiffnesses: 20 Super Soft, 25 Soft, 30 Medium
• Black water rails with a rounded profile to reduce turbulence, extending along the full length of the blade to improve water channeling and reduce edge vortices

Foot Pockets and Sizes

The MB001 fins are fitted with 250 foot pockets pre-shaped with a 3° angle, designed to ensure excellent comfort and smooth, direct power transmission.

The model is available in 7 sizes: 36/37, 38/39, 40/41, 41/42, 42/43, 43/44, 44/45, ensuring a precise and secure fit.

Applications

These carbon fins are specifically developed for freediving and spearfishing, offering a perfect balance between stiffness and elasticity for efficient thrust and greater underwater autonomy.

Carbon Pro Maximum Fins - Pathos

The Pathos Carbon Pro Maximum Fins are the ideal choice for spearfishing in shallow and medium-shallow water, where reaction speed, lightness, and immediate thrust make the difference. Designed as an evolution of the Fireblade and included in the Pathos carbon range alongside the Ultimate and Supreme, the Maximum stand out for their specific flex curve, more compact longitudinal dimensions, and a blade-to-foot pocket angle engineered to deliver excellent performance even for users without an extreme training background.

Carbon Fiber Fabric

The Carbon Pro Maximum blades are made from pure 285-T4 and 285-T2 carbon fiber, a combination that ensures high strength and instant response. The selected carbon fibers, paired with top-quality epoxy resin, provide stiffness, reliability, and long service life. The outer 285-T4 4×4 weave eliminates roughness, cracking, and blade distortion by ensuring complete resin impregnation, while the inner 285-T2 2×2 weave ensures a fast blade return.

Production Process

Each pair is heat-treated for 36 hours at 8 tons of pressure for 24 hours. This process gives the Maximum carbon blades a glossy surface that minimizes friction with the water and delivers more responsive performance. The manufacturing process also minimizes carbon fabric and epoxy resin waste.

C-Curve Technology

The Maximum blades distribute the power generated by the diver’s movement along their entire length. The special internal design, based on the arrangement of the carbon fabric, allows the blades to take on a full curved C shape under pressure, ensuring the best flexibility, efficiency, and functionality. Blade return is instantaneous.

Flap-Shaped Edge

After hundreds of hours of testing different edge shapes, the Maximum flap-shaped edge not only reduces the diver’s effort, but also adds extra thrust in the final phase of the leg movement. This feature allows less power to be used compared to previous models.

Water Rails

The Maximum carbon blades are equipped with side water rails that act as elastic guides, creating a water channel that prevents the fins from drifting sideways, preserving the diver’s energy. The water rails, with a constant height of 16 mm, are positioned along the blades for a total of 27 cm and are intentionally compact so they do not interfere with the flex of the carbon fiber, keep weight down, and avoid making the kick heavier.

24° Angle and Blade Geometry

The angle between the foot pocket and the blade is 24°, a medium value that delivers good performance and makes the fin accessible without requiring extreme training. The Maximum blades measure 62 cm down the center (from the curve under the foot pocket to the tip) and 54 cm along the side, with a maximum width of 18.8 cm inside the water rails. Blade thickness ranges from 0.66 mm at the flap tip, to 0.88 mm at mid-length, up to 1.25 mm in the area in front of the foot pocket, confirming a stiffness progression that optimizes both thrust and return.

The blade tip has a convex profile for improved thrust during the final phase of the kick.

Performance

The Maximum perform exceptionally well both on the surface, where they allow fast progress without tiring the legs, and at depth, with a quick push-off from the bottom and consistent thrust. They are designed for very fast spearfishing in shallow and medium-shallow water, where immediate responsiveness and energy saving are key factors.

Available Sizes

• Sizes: 38/40, 40/42, 42/44, 44/46, 46/48, 48/50
  

Cetma Mantra Blades - Carbon 

The Mantra blades are the flagship model from Cetma Composites, specifically designed for freedivers and spearfishers who demand high-level technical equipment. Made entirely from 100% Pre-preg carbon, the blades are manufactured using an exclusive hot-melt impregnation technology with tetra-functional resin, applied under high pressure, high temperature, and vacuum conditions. This process ensures a defect-free blade with a consistent fiber/resin ratio across the entire surface.

Design and Technical Features

The engineered distribution of stiffness and mass in the blade allows its natural frequency to be tuned to the finning frequency range, leveraging resonance to optimize thrust transmission and responsiveness. This advanced design improves the smoothness and efficiency of the fin stroke during freediving and spearfishing.

Constant-section water rails with a height of 10 mm, designed to improve hydrodynamic grip and stability in the water.

Available Variants

• Stiffnesses: 20 super soft, 25 soft, 30 medium, allowing a calibrated choice based on finning style and the required stiffness level.
  
• Blade dimensions: 742 x 195 mm, sized to ensure an effective balance between thrust and maneuverability.
• Available graphics: gold, white, magenta.

Cetma Mantra Blades - Carbon

The Mantra blades are the flagship model from Cetma Composites, specifically designed for freedivers and spearfishers who demand high-level technical equipment. Made entirely from 100% pre-preg carbon, the blades are built using an exclusive hot-melt impregnation technology with tetra-functional resin, applied under high pressure, high temperature, and vacuum conditions. This process ensures a defect-free blade, with a consistent fiber/resin ratio across the entire surface.

Design and Technical Features

The engineered distribution of stiffness and mass in the blade allows its natural frequency to be tuned to the finning frequency range, leveraging resonance to optimize thrust transmission and responsiveness. This advanced design improves the smoothness and efficiency of the kick during freediving and spearfishing.

Constant-section water rails with a height of 10 mm, designed to improve hydrodynamic tracking and stability in the water.

Available Variants

• Stiffness options: 20 super soft, 25 soft, 30 medium, allowing a calibrated choice based on kick style and required stiffness level.
  
• Blade dimensions: 742 x 195 mm, sized to provide an effective balance between thrust and maneuverability.
• Available graphics: gold, white, magenta.

Cetma Mantra Blades - Carbon 

The Mantra blades are the flagship model from Cetma Composites, specifically designed for freedivers and spearfishers who demand high-level technical equipment. Made entirely from 100% Pre-preg carbon, the blades are built using an exclusive hot-melt impregnation technology with tetra-functional resin, applied under high pressure, high temperature, and vacuum conditions. This process ensures a defect-free blade, with a consistent fiber/resin ratio across the entire surface.

Design and Technical Features

The engineered distribution of stiffness and mass in the blade allows its natural frequency to be tuned to the finning frequency range, leveraging resonance to optimize thrust transfer and responsiveness. This advanced design improves the fluidity and efficiency of the fin stroke during freediving and spearfishing.

Constant-section water rails with a height of 10 mm, designed to improve hydrodynamic grip and stability in the water.

Available Variants

• Stiffnesses: 20 super soft, 25 soft, 30 medium, allowing a calibrated choice based on finning style and the required stiffness level.
  
• Blade dimensions: 742 x 195 mm, sized to ensure an effective balance between thrust and maneuverability.
• Available graphics: gold, white, magenta.

SigalSub Tsunami Fins in T-700 Carbon

The Tsunami fins by SigalSub are made entirely from T-700 carbon, a material that ensures lightness and mechanical strength. The blade design was developed to optimize shape and efficiency, delivering the perfect balance of power and comfort during finning in freediving and spearfishing.

Technical Features

• Material: 100% T-700 carbon for increased responsiveness and durability
• Blade dimensions: 840 x 190 mm
• Blade angle: 23°, engineered to balance thrust and ease of movement
• Available stiffnesses: Super Soft, Soft, Medium, to suit different experience levels and finning styles
• Sizes: 36/37, 38/39, 40/41, 42/43, 44/45, 46/47

The Tsunami are designed to provide smooth thrust transfer and excellent efficiency in the water, thanks to the calibrated blade stiffness that allows power to be modulated without excessive muscle fatigue.

The lightness and responsiveness of T-700 carbon ensure balanced trim and a natural finning action, making movement easier during freediving and spearfishing.

Prana Fins - Cetma Composites

The Prana fins are an advanced model specifically designed for freedivers and spearfishers who demand uncompromising equipment in terms of quality and materials.

Materials and Construction

The blades are made of 75% carbon and 25% S-Glass, a high-strength fiberglass derived from the aerospace industry. The manufacturing process involves an exclusive high-pressure, high-temperature, vacuum process, with hot-melt impregnation using tetra-functional resin. This method ensures a flawless component with a consistent fiber/resin ratio along the entire blade, delivering strength and lightness.

Engineering Design for Efficient Finning

The calibrated distribution of stiffness and mass along the blade promotes resonance within a range of natural frequencies that match the typical finning frequency. This configuration optimizes thrust transmission, reducing fatigue and increasing the fluidity of movement underwater.

Design and Components

• Foot Pockets: S-Wing model without side rails, ensuring comfort and security when worn.
• Water rails: constant-profile structure with a height of 10 mm, designed for optimal stability and trim control.
• Blade dimensions: 667 x 185 mm, balanced to ensure efficient propulsion.

Available Variants and Sizes

• Stiffnesses: 25 soft and 30 medium to suit different thrust and comfort needs.
• Sizes: 39/40, 41/42, 43/44, 45/46 for a precise fit.
• Logo and side rail colors:  red, orange, and yellow.

Applications

The Prana fins are specifically designed to improve responsiveness and hydrodynamic efficiency during spearfishing and freediving, making finning smoother and less tiring even during extended sessions.

Prana Fins - Cetma Composites

The Prana fins are an advanced model specifically designed for freedivers and spearfishers who demand uncompromising equipment in terms of quality and materials.

Materials and Construction

The blades are made of 75% carbon and 25% S-Glass, a high-strength fiberglass derived from the aerospace industry. The manufacturing process uses an exclusive high-pressure, high-temperature vacuum process, with hot melt impregnation using tetra-functional resin. This method ensures a defect-free component with a consistent fiber/resin ratio along the entire blade, delivering strength and lightness.

Engineered Design for Efficient Finning

The calibrated distribution of stiffness and mass along the blade promotes resonance within a range of natural frequencies that match the typical finning frequency. This configuration optimizes thrust transmission, reducing fatigue and increasing fluidity of movement underwater.

Design and Components

• Foot Pockets: S-Wing model without side rails, ensuring comfort and a secure fit.
• Water rails: constant-profile structure with a height of 10 mm, designed for optimal stability and trim control.
• Blade dimensions: 667 x 185 mm, balanced to ensure efficient propulsion.

Available Variants and Sizes

• Stiffness options: 25 soft and 30 medium to suit different thrust and comfort requirements.
• Sizes: 39/40, 41/42, 43/44, 45/46 for a precise fit.
• Logo and side rail colors:  red, orange, and yellow.

Applications

The Prana fins are specifically designed to improve responsiveness and hydrodynamic efficiency during spearfishing and freediving, making the fin stroke smoother and less tiring even during extended sessions.

Prana Fins - Cetma Composites

The Prana fins are an advanced model specifically designed for freedivers and spearfishers who demand uncompromising equipment in terms of quality and materials.

Materials and Construction

The blades are made of 75% carbon and 25% S-Glass, a high-strength fiberglass derived from the aerospace industry. Manufacturing involves an exclusive high-pressure, high-temperature vacuum process, with hot-melt impregnation using tetra-functional resin. This method ensures a defect-free component with a consistent fiber/resin ratio along the entire blade, delivering strength and lightness.

Engineered Design for Efficient Finning

The calibrated distribution of stiffness and mass along the blade promotes resonance within a range of natural frequencies that match the typical finning frequency. This configuration optimizes thrust transmission, reducing fatigue and increasing the fluidity of underwater movement.

Design and Components

• Foot Pockets: S-Wing model without side rails, ensuring comfort and a secure fit.
• Water rails: constant-profile structure with a height of 10 mm, designed for optimal stability and trim control.
• Blade size: 667 x 185 mm, balanced to ensure efficient propulsion.

Available Variants and Sizes

• Stiffness options: 25 soft and 30 medium to suit different thrust and comfort requirements.
• Sizes: 39/40, 41/42, 43/44, 45/46 for a precise fit.
• Logo and side-rail colors:  red, orange, and yellow.

Applications

The Prana fins are specifically designed to improve responsiveness and hydrodynamic efficiency during spearfishing and freediving, making finning smoother and less tiring even during extended sessions.