Single Blade C4 MB001 CAMOSKIN OCEAN

The C4 MB001 CAMOSKIN OCEAN single blade is specifically designed for spearfishing and freediving, offering a balance of lightness and mechanical strength.

Available in two different stiffnesses, this blade lets you adapt the responsiveness of the blade and power transmission according to individual needs and water conditions.

C4 MB002 Single Blade for Freediving and Spearfishing

The C4 MB002 single blade is designed specifically for freediving and spearfishing, delivering highly effective thrust transmission. Made with durable materials, it ensures long-lasting performance and mechanical strength even with frequent dives.

Thanks to its design, engineered to optimize fluid movement, the blade improves responsiveness and efficiency during finning, minimizing muscle fatigue. Advanced hydrodynamics provide smoother, more controlled thrust during descent and ascent phases.

The C4 MB002 blade combines lightness and strength, essential features for ensuring comfort and precision in underwater movements without compromising the power needed for freediving dives.

Single Blade S-990 CAMU

The single blade S-990 CAMU is designed for spearfishing and freediving, with a strong focus on responsiveness and smoothness during the fin stroke. This model is available in the Soft - 25 stiffness version, ideal for those looking for a balance between elasticity and power transfer in the water.

The blade is made with selected materials to ensure good hydrodynamic efficiency and a low weight, making it easy to handle and suitable for extended use during freediving sessions.

Single Blade S-990 FIRESTONE for spearfishing and freediving

The single Blade S-990 FIRESTONE is specifically designed for freediving and spearfishing, available in three stiffness levels to offer customized solutions based on thrust and comfort needs during finning.

Made with selected materials, this blade combines light weight and mechanical strength, ensuring optimal thrust transmission and efficient hydrodynamic performance in the water.

The choice between different stiffness levels allows you to achieve the ideal balance between flexibility and efficiency, improving fluidity of movement and reducing fatigue during freedives. The blade’s advanced design ensures powerful thrust and immediate responsiveness, key elements for precise, controlled maneuvering in spearfishing.

Single Blade Umberto Pelizzari

The single blade Umberto Pelizzari is specifically designed for freediving and spearfishing, ensuring efficient power transfer and a smooth fin stroke. Available in two different stiffness levels, it lets you choose the ideal rigidity based on your needs for comfort and responsiveness in the water.

Single Blade Umberto Pelizzari - Ghost

The Ghost single blade, by Umberto Pelizzari, is designed specifically for freediving and spearfishing. Available in Medium - 30 stiffness, it provides an optimal balance between flexibility and rigidity for an efficient, responsive fin stroke.

This blade delivers balanced thrust transmission, ensuring smooth movement that reduces fatigue during extended dives. The design is engineered to maximize hydrodynamics, improving control and precision during underwater propulsion.

Sportech Carbon Fiber Blades for Spearfishing

This pair of Sportech blades is made from carbon fiber, a material known for its exceptional lightness and mechanical strength. Available in two different stiffnesses, the blades are designed to deliver excellent efficiency in thrust transmission and optimal responsiveness during freediving fin kicks.

The carbon fiber construction also ensures excellent fluidity of movement and remarkable responsiveness, making control and maneuverability easier underwater.

Sportech fiberglass Blades

The pair of Sportech blades is made from fiberglass, a material known for its mechanical strength and its ability to combine light weight with long-lasting durability. Available in two different stiffness levels, these blades ensure optimal thrust transmission during finning.

Choosing the most suitable stiffness allows you to adapt responsiveness and movement efficiency in the water to the specific needs of freediving and spearfishing, improving control and fluidity throughout the underwater kick cycle.

Pair of Sportech Fiberglass Blades

This pair of Sportech blades is made from fiberglass, a material known for its excellent combination of elasticity and mechanical strength. The blades are specifically designed for spearfishing and freediving, ensuring effective power transfer in the water.

They are available in two different stiffness levels, allowing you to choose according to personal preferences in terms of responsiveness and efficiency during finning. The range of stiffness options helps optimize smooth movement and comfort during dives.

Wetsuit Pants Valve - "Pee Valve"

The valve, commonly known as a "pee valve," is designed to be installed on wetsuit pants, allowing you to urinate without having to remove your entire setup. This accessory helps maintain thermal insulation and protection during spearfishing and freediving sessions.

Its simple installation ensures practicality and extended comfort, which is especially important during cold-water dives, where any heat loss can compromise the duration and safety of the underwater activity.

This technical component is essential for long-duration dives, preventing interruptions and minimizing body heat loss, thereby improving efficiency and performance during spearfishing.

The wetsuit valve is an essential item for freedivers and spearfishers diving in cold-water conditions, ensuring comfort and uninterrupted use.

C4 floating Marker Weight for freediving and spearfishing

The C4 floating Marker Weight is a buoy designed for precise marking of spots on the seabed, ideal even in low-visibility conditions during freediving and spearfishing activities.

Made with a sturdy steel plate that acts as an anchoring weight, the Marker Weight releases easily from the belt and can be positioned at the desired spot on the seabed. This ensures stable, secure positioning during the dive.

The float is equipped with 50 meters of durable Line, which runs vertically up to the surface, ensuring a clearly defined and visible marking line.

Main technical features

• High-strength steel plate for anchoring on the seabed
• Floating Spool with Line attachment system
• 50-meter Line, thin yet strong, designed to maintain position even in sea current
• Cleat integrated into the floating section to securely fasten the Line

The design of the C4 Marker Weight ensures perfect Line management with secure fastening, minimizing movement caused by current and making it easier to locate the dive spot.

C4 FGB Umberto Pelizzari Fiberglass Fins for Freediving and Spearfishing

The FGB Umberto Pelizzari fins, designed and manufactured entirely in Italy by C4, feature a blade made from 100% prepreg epoxy fiberglass. This technical material delivers the perfect balance between elasticity and mechanical strength, ensuring efficient thrust transfer and a smooth, controlled kick—essential characteristics for freediving and spearfishing.

With a length of 79 cm, the blade has a thrust area greater than its hydrodynamic resistance area, promoting optimized elastic deformation that increases propulsion without increasing physical effort. The water rails with a convex section, extending along the full length of the blade, are designed to improve water channeling, reducing lateral vortices and optimizing the fin’s hydrodynamics during dives.

The perforated 250 model Foot Pocket with a 3° angle provides a comfortable and precise fit, essential for maintaining control during freediving and spearfishing sessions, ensuring stability and comfort even during extended use.

Technical Features

• Blade material: 100% prepreg epoxy fiberglass, for an optimal balance between lightness and durability
• Blade dimensions: 790 x 195 mm
• Available stiffnesses: 20 Super Soft, 25 Soft, 30 Medium, to suit different thrust and effort requirements
• Water rails: anti-turbulence convex profile, reducing lateral vortices and improving hydrodynamic efficiency
• Foot Pocket: perforated 250 model with a 3° angle, designed for maximum comfort and a secure fit on the foot
• Color: all black for blade and water rails, for a clean, functional design in the water
• Available Sizes: from 36/37 to 46/47, for a precise and comfortable fit

C4 FGB Umberto Pelizzari Fiberglass Fins

The FGB Umberto Pelizzari fins are made entirely in Italy by C4 using blades made from 100% prepreg epoxy fiberglass. This specific composition and manufacturing process provides a blade with an optimal combination of elasticity and mechanical strength, delivering efficient thrust and smooth power transfer during the fin stroke. The blade design, 79 cm long and 19.5 cm wide, is engineered to maximize thrust surface while keeping hydrodynamic drag low.

Technical Features

• Blade material: 100% prepreg epoxy fiberglass
• Blade dimensions: 790 x 195 mm
• Available Blade Stiffness: 20 Super Soft, 25 Soft, 30 Medium
• Water rails: black anti-turbulence rounded profile, extending along the full length of the blade
• Foot Pocket: model 250 pre-shaped at 3°, black
• Blade color: black
• Available Sizes: 36/37 - 38/39 - 39/40 - 40/41 - 41/42 - 42/43 - 43/44 - 44/45 - 46/47

Efficiency and Comfort for Freediving and Spearfishing

The FGB-UP fin blades are designed to produce greater elastic deformation than traditional blades, increasing propulsion without placing excessive effort on the freediver or spearfisher. The rounded-section water rails help channel water along the blade, reducing vortex formation along the outer edges and improving stability and hydrodynamic efficiency during thrust.

The 250 foot pockets with a 3° angle ensure an excellent fit, providing comfort and precise transfer of foot power to the blade while limiting energy loss during the fin stroke.

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.

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

The L-1090 Pesca fins are made entirely from pure carbon and are part of the new C4 200 line, designed for freediving and spearfishing. The blade is built with a progressive lamination of four different types of Japanese carbon, arranged in seven unidirectional layers, for an optimal balance between reactivity and mechanical strength.

Technical Features of the Blade

• Dimensions: 940 x 192 mm
• Construction: seven layers of carbon combined to ensure maximum thrust transmission
• Finish: visible carbon with military green decoration
• Water rails: bonded and overmolded under high pressure and temperature, made with polymer fused to the blade composite to prevent detachment during dives
• Variable geometry of the water rails designed to protect the area near the foot and minimize load losses along the entire blade
• Hydrodynamic anti-turbulence flap to improve smooth movement through the water

Foot Pockets

The fins are fitted with 200 foot pockets featuring a black thermoplastic elastomer upper and a white polypropylene sole, ensuring comfort, protection, and a snug fit for effective force transmission during the fin stroke.

Available Variants

• Stiffnesses: 25 (soft), 30 (medium), 35 (medium hard)
• Sizes: 36/37, 38/39, 40/41, 41/42, 42/43, 43/44, 44/45

These fins are specifically designed for spearfishing, offering a balance of lightness, elasticity, and precision in power transmission, promoting an efficient, less tiring fin stroke during dives.

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.

Fins MB001 CAMOSKIN MED

The MB project represents a renewal of the mid-to-high-end range of carbon fins, faithfully maintaining the traditional technical principles of finning technique in freediving and spearfishing. Within C4’s technical vision, the 200 series represents the highest level of research and development, while the MB001 are the best interpretation of the traditional carbon fin, updated with modern materials and construction solutions.

The MB001 CAMOSKIN MED are equipped with the new 250 foot pocket, a direct evolution of the previous 300 model. This foot pocket is made from TPE 75 ShA overmolded onto a rigid insole, a combination that ensures efficient, direct energy transfer from the foot to the fin blade. Careful attention to geometry has made it possible to reduce thickness and keep overall weight down: the 250 foot pocket in size 41/42 weighs only 250 g.

The result is a carbon fin that combines efficiency, controlled elastic response, and a traditional technical setup, designed for freedivers looking for a balance between high performance and a classic finning feel.

Fins MB001 CAMOSKIN OCEAN

The MB001 CAMOSKIN MED fins represent the evolution of C4’s upper-mid-range carbon fin lineup, part of the 200 series, the brand’s highest level of research and development. This model is the most advanced interpretation of the traditional carbon fin, updated with innovative materials and construction solutions optimized for freediving and spearfishing.

Materials and Construction

The 250 foot pocket, developed as a direct evolution of the previous 300 model, is made from TPE 75 ShA overmolded onto a robust rigid sole. This construction ensures efficient, direct energy transfer from the foot to the blade, significantly improving responsiveness during the fin stroke.

The precisely engineered geometry keeps thickness to a minimum, reducing overall weight: the 250 foot pocket in size 41/42 weighs only 250 grams, ensuring lightness without compromising mechanical strength.

Technical Features and Performance

• Efficiency: the combination of materials and design optimizes thrust and energy transfer for smooth movement in the water.
• Controlled elastic response: the balance between blade elasticity and stiffness allows for a precise, manageable fin stroke while reducing muscle fatigue.
• Traditional technical setup: maintains the classic feel appreciated by experienced freedivers, while still delivering the benefits of modern technology.

The MB001 CAMOSKIN OCEAN fins are designed for freediving and spearfishing users looking for a technical tool that combines comfort, lightness, and fluid movement underwater.

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.

Predator C4 Plastic Fins for Freediving and Spearfishing

The Predator fins by C4 are 100% Italian-made plastic fins, designed for freedivers and spearfishers of all levels. Featuring an eye-catching design and high-quality materials, these fins offer an excellent combination of softness and responsiveness in the blade, ideal for efficient underwater finning.

Technical Features

• Overmolded technopolymer blade made with a compound engineered to ensure high elasticity, strength, and elastic rebound.
• Blade dimensions: 870 x 195 mm, optimized for effective thrust transfer in the water.
• Water rails at the tip of the blade, designed to prevent lateral drift and improve stability during finning.
• Pre-shaped 250 Foot Pockets with a 3° angle, equipped with a rigid sole to transfer all energy to the blade, ensuring maximum efficiency in movement.
• Total fin weight with foot pocket in size 42/43: 630 grams, providing excellent lightness without sacrificing durability and control.
• Available blade stiffness: 25 soft, suitable for ensuring comfort and smooth finning even during extended dives.
• Available Sizes: 36/37, 38/39, 40/41, 41/42, 42/43, 43/44, 44/45, 46/47, for an ergonomic and precise fit.

Usage Benefits

The Predator fins are designed to deliver optimal thrust transfer, thanks to the rigid sole of the foot pocket and the technopolymer blade with immediate response. The water rail configuration provides stable, directional finning, reducing effort caused by skidding or deviation.

The choice of a soft blade compound ensures a good balance between responsiveness and comfort, ideal for freediving and spearfishing sessions where effective propulsion is required without excessive fatigue.

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

C4 S-990 Camu 100% Carbon Freediving Fins

The S-990 Camu are fins specifically designed for freediving and spearfishing, made entirely from 100% carbon and part of the new C4 200 line. The blade, measuring 770 x 192 mm, is built with a progressive lamination of four different types of Japanese carbon, combined across seven unidirectional layers. This configuration significantly improves the reactivity and mechanical strength of the blade, ensuring efficient thrust transmission during finning in the water.

Technical blade features

• Dovetail Rig for improved flow and optimized hydrodynamics.
• Visible carbon finish enhanced with a white decoration for a technical and functional design.
• Water rails glued and overmolded at high pressure and temperature, allowing the polymer to fuse with the blade composite and eliminating the risk of detachment during dives.
• Variable water rail geometry designed to protect the blade in the area near the foot and minimize load losses along the entire length of the blade.

Foot Pocket

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

• Black thermoplastic elastomer upper to provide elasticity and comfort in the fit.
• Military green polypropylene sole, durable and lightweight to optimize fit without compromising agility and control.

Available variants

• Blade stiffness: 25 soft, 30 medium, and 40 hard, to suit different thrust and sensitivity requirements during freediving.
• Available Sizes: 36/37, 38/39, 40/41, 41/42, 42/43, 43/44, and 44/45, for a perfect fit and in-water comfort.

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

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.

SPORTECH FBG Fins for Freediving

The SPORTECH FBG fins are designed in fiberglass for modern pure freediving, offering an optimal balance of efficiency, comfort, and control during long training sessions in dynamic apnea and constant weight.

Technical Features

• Blade dimensions: 750x194 mm
• Full fin dimensions (size 40/42): 860x194 mm
• Blade material: Fiberglass Prepreg Epoxy
• Blade Stiffness: Soft, Medium/Soft
• Blade color: Black
• Water Rails: Black with rounded anti-turbulence profile
• Foot Pockets: SPORTECH silicone
• Available Sizes (Europe): 35/37 – 37/39 – 39/41 – 41/43 – 43/45 – 45/47
• Available Sizes (US/Canada): 4.5–6.5 – 6.5–7.5 – 7.5–8.5 – 8.5–9.5 – 9.5–11 – 11–12.5
• Compatibility: Only with SPORTECH blade models

Design and Comfort

The silicone foot pocket is designed to provide a soft, progressive fit, reducing fatigue and preventing pressure points. The open heel and right/left differentiated anatomical design ensure a better fit to the foot.

The one-piece structure with no gaps, derived from the PROTech model, allows direct and efficient power transfer, improving finning responsiveness and fluidity of movement in the water.

Applications

The SPORTECH FBG are recommended for freedivers engaged in regular dynamic apnea and constant weight training. These are freediving-specific fins, designed for frequent, uncompromising use with a competitive price-to-performance ratio.

SPORTECH FBG Fins for Freediving

The SPORTECH FBG are freediving fins made from Prepreg Epoxy fiberglass, designed for modern pure freediving. The design focuses on efficiency, comfort, and control during extended sessions, both in dynamic freediving and constant weight.

Technical Features

• Blade dimensions: 750 x 194 mm
• Complete fin dimensions (size 40/42): 860 x 194 mm
• Blade Stiffness: Soft, Medium/Soft, designed for progressive, controlled thrust transmission
• Water rails: black anti-turbulence rounded profile, to improve hydrodynamics and stabilize the fin in motion
• Foot Pocket: soft SPORTECH silicone with open heel, ensuring a comfortable, progressive fit while reducing fatigue and pressure points
• Differentiated anatomical design between right and left, for an ergonomic fit and improved power transfer
• Monoblock structure with no voids, derived from the PROTech model, to maximize thrust efficiency
• Available Sizes (Europe): 35/37 – 37/39 – 39/41 – 41/43 – 43/45 – 45/47
• Available Sizes (US/Canada): 4.5–6.5 – 6.5–7.5 – 7.5–8.5 – 8.5–9.5 – 9.5–11 – 11–12.5
• Compatibility: only with SPORTECH blade models

Materials and Performance

The blade is made from fiberglass Prepreg Epoxy, a material that provides an optimal combination of light weight, mechanical strength, and reactivity. The Soft and Medium/Soft blade stiffness allows for a smooth finning action and better movement control in the water, ideal for dynamic freediving and constant weight.

Comfort and Ergonomics

The silicone foot pocket is designed to ensure a soft, progressive fit, minimizing fatigue during extended dives. The open heel promotes foot stability without limiting freedom of movement, while the differentiated anatomical design optimizes power transfer, improving overall fin control.

Applications

The SPORTECH FBG are recommended for freedivers who train regularly in dynamic or constant weight. They are designed for frequent, dedicated freediving use, delivering an excellent balance of technical quality and cost/performance ratio in the spearfishing and freediving sector.

Storm C4 plastic fins for freediving and spearfishing

The Storm fins, entirely made in Italy by C4, are specifically designed for the needs of freedivers and spearfishers. The quality of the materials and purpose-driven design ensure mechanical strength and long-term durability, suitable for dives in shallow water down to 18 meters.

Technical features:

• Technopolymer Blade overmolded with a compound engineered to ensure softness, high elastic return, and durability
• Reduced dimensions: 780 x 195 mm, approximately 10 cm shorter than standard spearfishing fins, optimized for maneuverability and fluidity in shallow water
• Water rails positioned at the tip of the blade to improve hold and reduce sideslip during the kick cycle, thereby increasing thrust efficiency
• Pre-shaped 3° “250” Foot Pocket with rigid sole, designed to transfer all energy to the blade, ensuring optimal thrust transmission
• Low weight of 590 grams for size 42/43, promoting lightness and reducing fatigue during the dive

Stiffness and availability

• Blade Stiffness: 25 soft, balanced for a compromise between flexibility and energetic response
• Available in eight sizes to ensure a precise and comfortable fit: 36/37 – 38/39 – 40/41 – 41/42 – 42/43 – 43/44 – 44/45 – 46/47

The Storm fins are suitable for freedivers of all levels, especially those operating in shallow underwater environments. The combination of innovative materials and compact design ensures comfort, hydrodynamic efficiency, and excellent kick performance.

UP C4 Fins for Freediving and Spearfishing

The UP C4 fins, designed in collaboration with Umberto Pelizzari, are a high-quality Italian product specifically developed for the needs of freediving and spearfishing. Made with selected materials, they provide an optimal balance of mechanical strength, elasticity, and efficiency in power transfer.

Technical Features and Design

• Plastic blades with finishes inspired by the carbon fiber weave, made up of a smooth, glossy central section and two side sections with a carbon fiber-like texture.
• Variable geometry designed to protect the blade in the area close to the foot and reduce load losses along its entire length, improving the fluidity of the fin stroke.
• Water rails in high-pressure and high-temperature overmolded thermorubber, with variable geometry, to increase the blade’s tracking and stability during movement.
• 29° blade angle, combined with the 3° angle of the 250 foot pocket, for a total of 32°, optimizing trim and power transfer in the water.
• 250 Foot Pockets pre-shaped at 3°, made from soft plastic material, with a rigid insole that transfers all the energy generated by the foot to the blade, ensuring high efficiency during the fin stroke.

Comfort and Fit

The 250 foot pockets are designed to adapt perfectly to different foot shapes, thanks to the elasticity and softness of the material used, ensuring a comfortable fit even during extended sessions in the water.

Available Variants

• Stiffnesses: 25 (soft) and 30 (medium), to adjust blade responsiveness according to individual preference.
• Available Sizes: 36/37, 38/39, 40/41, 41/42, 42/43, 43/44, 44/45.

Dimensions

• Blades: 795 x 625 mm
• Overall fin size: 910 x 625 mm

The combination of quality materials, a specific design for freediving and spearfishing, and collaboration with a leading athlete like Umberto Pelizzari results in a technical product suited to those seeking precision, fluidity, and comfort in the water.

Ghost C4 Fins for Freediving and Spearfishing

The Ghost fins by C4 represent a technical advancement in the spearfishing and freediving sector, with a design aimed at optimizing thrust and underwater stealth. The blade, made from high-elastic-return transparent technopolymer, offers responsiveness comparable to carbon blades, ensuring smooth and efficient power transfer.

Technical Features

• Blade material: transparent elastic technopolymer for underwater camouflage
• Blade dimensions: 800×195 mm
• Blade Stiffness: Medium
• Water Rails: variable geometry, high-pressure overmolded to improve handling and stability in the water
• Foot Pocket: 250 model, designed to provide comfort and a precise fit
• Available sizes: 36/37, 38/39, 40/41, 41/42, 42/43, 43/44, 44/45, 46/47

Technical Benefits

The transparency of the blade allows perfect camouflage in the underwater environment, reducing visual detection by prey and therefore improving the approach phase during spearfishing. The high elastic return of the technopolymer ensures powerful, energetic thrust while preserving a smooth finning action and the overall lightness of the fin.

The 250 foot pocket is engineered to provide a snug and comfortable fit, allowing excellent control and thermal comfort during the dive. The Ghost fins are the result of years of laboratory testing and field trials by recognized athletes in the spearfishing sector.

Additional Information

• 100% made in Italy product, synonymous with quality and attention to technical detail
• Each pair comes with an information leaflet containing instructions and recommendations for fin maintenance and protection

Wolverine C4 Silicone Fins for Freediving Training

The Wolverine fins by C4 are designed specifically to improve finning technique during freediving and spearfishing training. Made entirely from soft, durable silicone, these short fins offer a high level of elasticity and comfort, essential for refining thrust transmission in both flutter kick and the dolphin kick movement typical of monofins.

Technical Features

• Material: Soft silicone, ensuring durability and optimal elastic response
• Blade Stiffness: Soft, with structured ribs for efficient water-flow direction and calibrated elastic return
• Foot pocket design: Preformed and shaped for right and left foot, for a comfortable and secure fit
• Available Sizes: 36/37, 38/39, 40/41, 42/43, 44/45

Applications and Benefits

The Wolverine fins are ideal for dynamic freediving training sessions, helping improve movement coordination and optimize finning efficiency thanks to the balance between mechanical resistance and blade lightness. The silicone construction helps maintain excellent hydrodynamic fluidity while reducing fatigue during repeated exercises.

C4 Belt Fish Stringer by Marco Bardi

The C4 belt fish stringer was designed specifically for spearfishing and freediving, ensuring practicality and functionality during the dive. Made with durable materials and a design engineered for efficiency, it allows fish to be carried securely without compromising the freediver’s comfort.

Technical features

• Easy attachment: it attaches quickly to the belt even with weights already being worn, avoiding interruptions during spearfishing sessions.
• Pin with V-shaped head: makes it easier to thread the fish onto the line, reducing friction and the risk of damaging the catch.
• Plain Edge plastic line: does not damage the fish’s skin and does not absorb odors, preserving the quality of the catch during spearfishing.
• Mini cleat for line adjustment: allows the line to be wrapped to reduce bulk and optimize management of the fish stringer in the water.
• Ambidextrous use: can be attached on either the right or left side, ensuring maximum versatility according to the freediver’s habits.
• Integrated D-rings: two elements allow snap clips to be secured, increasing safety and attachment convenience during underwater activity.

Benefits for spearfishing

This fish stringer stands out for its light weight and ease of use, ensuring efficient carrying without compromising underwater mobility. The reduced bulk and quick adjustment option allow the freediver to stay focused on spearfishing technique, improving comfort and load management during the dive.

Absolute Cleaner: Specific Degreaser for Freediving and Spearfishing Masks

The result of a collaboration between C4 and Real Chimica, the well-known manufacturer of Chanteclair, Absolute Cleaner is an innovative, patented product for cleaning freediving masks. Ideal for permanently removing silicone oils from the glass lenses of new or used masks, it helps eliminate one of the main causes of fogging during dives.

Technical Features and Benefits

• Specific, patented formula for freediving and spearfishing masks that effectively removes silicone oils without damaging plastic parts or the skirt
• Solves the problem of the oily film that forms on the lenses after the silicone molding process at high temperatures
• Extensively tested and certified to ensure deep, safe cleaning of glass surfaces
• Compatible with new or used masks that have fogging issues caused by silicone residue

Instructions for Use

1. Spray the undiluted product on both surfaces of the lenses and on the skirt area before wetting them
2. Scrub the inner and outer lens surfaces vigorously for 4-5 minutes with a toothbrush or a sturdy cloth
3. Let the product work for at least 10 minutes, then rinse the mask thoroughly
4. Repeat the entire procedure (steps 1, 2, and 3) for optimal results

Note: It is not necessary to repeat the cleaning immediately before using the mask.

Applications and Benefits

Absolute Cleaner is a definitive solution for maintaining freediving and spearfishing masks, improving clarity and reducing the risk of fogging caused by silicone residue. It ensures a clear, consistent field of vision, optimizing diving conditions and underwater safety.