C4

Marco Bardi Lower Back Protection in High-Strength Nylon

The Marco Bardi lower back protection is a device designed to protect the lumbar area during freediving and spearfishing. Made from high-strength Nylon, this shaped rigid plate inserts easily into the weight belt, distributing the load over a wider area and reducing the risk of lower back inflammation.

Technical and Functional Features

• Material: high-strength Nylon for durability and toughness
• Shaped design: fits the natural curve of the lower back perfectly to help limit and correct excessive arching of the back
• Quick slots: allow easy insertion into the belt without removing the weights
• Non-slip: internal bends prevent the protection from shifting during the dive

Benefits During Use in the Water

The protection helps maintain a more horizontal position in the water, improving hydrodynamics and promoting optimal trim during spearfishing or freediving sessions. Load distribution reduces strain on the back, helping limit inflammation and lower back pain caused by the concentrated weight of the ballast on the belt.

Application

1. Insert the rigid plate into the slots of the weight belt
2. Position it over the lower back area
3. Check that the protection is stable and secured by the non-slip bends

DYN C4 Gloves in High-Modulus Thermoplastic Polyethylene

The DYN C4 Gloves are made from high-modulus thermoplastic polyethylene, a waterproof material that provides cut resistance and non-slip properties. This technical combination ensures protection and durability during spearfishing and freediving activities.

Design and Comfort

The glove features an anatomical cut designed to follow the natural shape of the hand, ensuring a snug yet comfortable fit. The calibrated material thickness provides excellent tactile sensitivity, essential for precisely handling a speargun, gripping fish, and manipulating small objects while diving.

Applications and Use

Specifically designed for warm-water spearfishing and summer seasons, these gloves optimize the balance between protection and freedom of movement. Their construction ensures practicality and safety when aiming the speargun and during catch-handling operations.

Available Sizes

• S
• M
• L
• XL

500-Gram Segment for C4 Freediving Neck Weights

This 500-gram segment is designed for both C4 neck weights, Dyno and D&D, a technical device dedicated to freedivers. Made from durable materials and finished in gray, the segment integrates into the modular system to provide a customizable and functional solution during freediving activities.

Technical Features

• Screw fastening: The system allows multiple segments to be combined, enabling a configuration adaptable to the individual needs of the freediver.
• Semi-mobile movement: After fastening, the segments maintain a certain degree of mobility, following the natural alignment of the vertebrae and ensuring no restrictions on spinal movement.
• Material and weight: The segment weighs 500 grams, offering a good balance between durability and lightness, ideal for avoiding added strain on posture during dives.
• Color: Gray, for a clean look and good integration with spearfishing equipment.
• Complete package: The product is supplied with an axle and screw for immediate fastening on C4 neck weights.

Functionality and Benefits

The segment’s modular, semi-moving design is intended to maintain freedom of movement in the spine during freediving dives, reducing possible discomfort or restriction. The structure allows optimal customization of the equipment, improving comfort and practicality in everyday use.

Mounting Screw Kit for 250 C4 Foot Pockets

Complete screw kit with M6 threading, specifically designed for mounting 250 foot pockets C4 on freediving and spearfishing blades. The screws feature hand-tightening nuts to ensure quick and secure fastening without the need for tools.

The finish is black, corrosion-resistant in marine environments, ensuring durability and reliability during underwater use.

The kit includes everything needed for the complete installation of a pair of foot pockets, making assembly precise and stable.

1 kg Segment for C4 Neck Weights – Freediving Equipment

The 1 kg segment is designed for both C4 neck weights, Dyno and D&D, a technical device dedicated to freedivers. This segment allows the neck weight to be customized modularly, ensuring precise adjustment to the freediver’s needs.

Technical Features

• Weight: 1 kilogram
• Material: durable and suitable for underwater use
• Color: Gray
• Attachment system: screw with pin included for safe, easy installation
• Modularity: multiple segments can be combined and assembled to adjust the overall weight

Functionality and Benefits

The screw attachment system ensures that the segments are semi-mobile, allowing them to follow the natural movements of the spine without restricting freedom of movement. This feature improves comfort during the dive, maintaining balanced and stable trim in the water.

The system’s modularity allows the freediver to precisely customize weight distribution according to diving style and specific conditions, optimizing underwater efficiency and maneuverability.

280-Gram Segment for C4 Dyno Freediving Collar

This 280-gram segment is designed for both C4 collars, Dyno and D&D, a technical device dedicated to freedivers. Made from durable materials and finished in black, the segment integrates into the modular system to provide a customizable and functional solution during freediving activity.

Technical Features

• Screw fastening: The system allows multiple segments to be combined, enabling a configuration that can be adapted to the individual needs of the freediver.
• Semi-mobile movement: Once fastened, the segments retain a degree of mobility, following the natural line of the vertebrae and ensuring no restriction in spinal movement.
• Material and weight: The segment weighs 280 grams, offering a good balance between durability and lightness, ideal for avoiding added strain on posture during the dive.
• Color: Gray, for a subtle look and good integration with spearfishing gear.
• Complete package: The product is supplied with pin and screw for immediate fastening on C4 collars.

Functionality and Benefits

The modular, semi-moving design of the segment is intended to maintain freedom of movement of the spine during freediving sessions, reducing possible discomfort or restriction. The structure allows optimal gear customization, improving comfort and practicality in everyday use.

380-Gram Segment for C4 Freediving Neck Weights

This 380-gram segment is designed for both C4 neck weights, Dyno and D&D, a technical device dedicated to freedivers. Made from durable materials and finished in gray, the segment integrates into the modular system to provide a customizable and functional solution during freediving activity.

Technical Features

• Screw fastening: The system allows multiple segments to be combined, enabling a configuration that can be adapted to the individual needs of the freediver.
• Semi-mobile movement: Once fastened, the segments retain a degree of mobility, following the natural alignment of the vertebrae and ensuring no limitations to spinal movement.
• Material and weight: The segment weighs 380 grams, offering a good balance between strength and lightness, ideal for not weighing down posture during the dive.
• Color: Gray, for a clean look and good integration with spearfishing equipment.
• Complete package: The product is supplied with axle and screw for immediate attachment to C4 neck weights.

Functionality and Benefits

The modular, semi-moving design of the segment is intended to preserve the freedom of movement of the spine during freediving, reducing possible discomfort or restriction. The structure allows optimal customization of the equipment, improving comfort and practicality in everyday use.

EasyQ by C4 - Equalization Technique Training System

EasyQ by C4 is a device specifically designed to improve the equalization technique used in freediving and spearfishing, allowing targeted training even out of the water.

The system is designed to be used with one hand, leaving the other free to be placed on the abdomen: this feature allows effective monitoring of the movement of the diaphragm and intercostal muscles, which are essential for correct, smooth equalization.

Kit Contents

• Three custom C4 balloons, specifically for equalization training
• Two valves in different sizes, to adapt resistance to individual needs

Technical Features

• Easy one-handed use
• Allows muscle control by placing the free hand on the abdomen
• Custom components to ensure appropriate resistance and response for muscle work
• Available in two sizes to suit different equalization abilities

The EasyQ System C4 is an essential technical tool for freedivers and spearfishers who want to improve their equalization ability, developing more precise control and greater fluidity in respiratory movement.

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.

Replacement Screw Kit for C4 200 Foot Pockets

The kit includes a complete set of replacement and assembly screws specifically designed for C4 200 foot pockets. These components are essential to ensure proper fastening and maintain the structural integrity of the foot pockets during freediving and spearfishing activities.

The precise screw compatibility ensures optimal assembly, contributing to the durability and comfort of your freediving equipment while preventing failure points or loosening during dives.

C4 Mistral Soft Snorkel for Freediving and Spearfishing

The Mistral Soft snorkel by C4 is designed specifically for the needs of freedivers and spearfishers, ensuring optimal comfort and functionality while breathing at the surface.

Technical Features

• Ergonomic hypoallergenic silicone mouthpiece for long-lasting comfort and a better seal in the mouth.
• Tube made from dual materials with different hardness levels: the central section in soft thermoplastic material for flexibility and durability, and the upper section in ultra-soft material for adaptability and hydrodynamics.
• Total length of 37 cm, designed for ergonomics suited to freediving.
• Variable diameter from 18.5 mm to 21.7 mm for balanced, unobstructed airflow.
• Available in Black and Silver colors to suit different aesthetic preferences with no technical compromise.

Benefits for Freediving and Spearfishing

The combination of differentiated materials ensures greater elasticity and lightness of the tube, minimizing hydrodynamic drag in the water and improving breathing during the surface phase.

The hypoallergenic silicone mouthpiece provides better stability in the mouth, reducing jaw fatigue and increasing comfort during extended freediving or spearfishing sessions.

Careful construction and selected materials make this snorkel reliable and durable, meeting the specific technical needs of freedivers and spearfishers.

Elastic and Adjustable C4 Knife Holder Arm Strap

The C4 knife holder strap is specifically designed for freediving and spearfishing, ensuring the knife stays securely on the arm without compromising freedom of movement.

Technical Features

• High-strength elastic material for a secure and comfortable fit
• Adjustable to fit different arm circumferences perfectly
• 4 mm thickness that provides an optimal balance between durability and comfort

Benefits for Freedivers and Spearfishers

The C4 strap ensures stable positioning and quick access to the knife while in the water. The elastic material helps maintain a streamlined hydrodynamic profile by reducing bulk, while the customized adjustment improves comfort and safety in the water.

Stainless Steel Slide for Gladius and Mr. Carbon 2

This stainless steel slide is specifically designed for Gladius and Mr. Carbon 2 spearguns, ensuring a quick coupling with the C4 universal bracket. Its robust construction provides mechanical strength and durability in marine environments.

The slide allows you to mount cameras for stable, vibration-free underwater footage, improving recording quality during freediving and spearfishing.

Technical Features

• Material: stainless steel for high corrosion resistance
• Compatibility: for Gladius and Mr. Carbon 2 spearguns
• Quick coupling with C4 universal bracket
• Adaptable to other spearguns using two mounting screws
• Supports cameras for smooth, vibration-free footage

Mounting and Adaptability

The slide installs easily on the C4 universal bracket via a quick-release system. It can also be adapted to other spearguns with two simple screws, offering practicality and versatility during freediving and spearfishing.

C4 Light Backpack - Marco Bardi Collection

The C4 Light Backpack is designed specifically for the needs of freedivers and spearfishers, prioritizing the combination of light weight and durability. Made from a tear-resistant technical fabric, it ensures long-lasting performance and optimal protection for its contents during transport.

The minimalist, functional design makes it easy to carry freediving gear or specific apparel without adding excessive weight, improving comfort when traveling to your dive spots.

Main features:

• Abrasion- and tear-resistant material for long service life, even with extended use in marine environments
• Lightweight construction for easy carrying without compromising capacity
• Essential design, optimized for use in freediving and spearfishing, with a focus on practicality and reliability

The C4 Light Backpack is the ideal solution for anyone looking for a technical, functional way to manage equipment during freediving sessions, allowing efficient preparation and better organization before and after the dive.

C4 Ergonomic Grip for Spearfishing Gun

The C4 ergonomic grip is designed to provide a secure hold and precise control of the gun during spearfishing. The ergonomic design promotes a natural hand position, helping improve grip stability and reduce fatigue during use.

Made from lightweight, durable materials, it ensures long-lasting performance and a pleasant feel to the touch. The non-slip surface increases grip even during the most dynamic stages of the hunt, improving safety and precision when tracking with the gun.

Main features

• Ergonomic design developed to improve comfort and control
• Non-slip surface for a stable, secure grip
• Durable, lightweight materials for greater longevity
• Compatible with all gun models with a handle secured by two screws
• Available in Right and Left versions
• Color: Black

An accessory designed to add functionality, reliability, and practicality to everyday use of your spearfishing gun.

Ergonomic Grip for C4 Spearguns

Ergonomic grip designed to improve the hold on C4 series spearguns, compatible with all models equipped with a handle secured by two threaded screws. This grip provides greater comfort and control during use in spearfishing and freediving.

Technical Features

• Compatibility: all C4 spearguns with a handle secured by two screws
• Material: durable and lightweight to ensure long service life and easy handling
• Simple, secure installation with two threaded screws
• Available colors: black and white
• Versions: right-hand and left-hand grip, to optimize ergonomics based on the hand used

Benefits for Freediving and Spearfishing

The ergonomic grip ensures better distribution of the hold on the speargun, increasing stability and comfort during tracking and shooting. Its anatomical shape reduces hand fatigue, improving accuracy and sensitivity—key factors in spearfishing, where smooth movement and control are essential.

Installation

1. Position the grip on the handle of the C4 speargun, aligning the screw holes.
2. Secure it firmly using the two supplied threaded screws.
3. Check the stability of the grip before use in the water.

C4 Elastic Line for Freediving Float

The C4 elastic line is designed to keep the float steadily positioned directly above the diver during freediving or spearfishing sessions, reducing the risk of losing it. Thanks to its ability to stretch up to three times its relaxed length, it effectively absorbs tension caused by waves and wind, ensuring safer, more controlled float management.

Technical Features

• Stretch: up to 3 times its relaxed length with no effort
• Materials: durable and flexible elastic cord, high-durability nylon swivel snap hooks at the ends
• Available lengths: 4 meters, 8 meters, 12 meters

Functional Benefits

The elasticity of the cord helps counteract the dynamic forces of water and wind, keeping the float in an optimal position relative to the diver, thereby improving safety and gear management during freediving and spearfishing.

The nylon swivel snap hooks ensure a reliable, twist-free connection, making it easier to attach and adjust the line to the float and underwater anchor.

C4 Neoprene 1.5 mm Finger Socks Toe Covers for Freediving and Spearfishing

The C4 finger socks toe covers are foot protectors specifically designed for use with open-heel fins in freediving and spearfishing. Made from 1.5 mm Neoprene, they feature a smooth outer surface that reduces friction during finning and a lined inner layer that ensures optimal comfort and fit.

Technical Features

The reduced 1.5 mm thickness offers an excellent balance of targeted foot protection, thermal insulation, and maintaining precise power transfer, essential for efficient, responsive finning in the water.

Available Sizes

• S: 36–39
• M: 40–43
• L: 44–46

These toe covers are ideal for freedivers and spearfishers who need targeted foot protection without compromising sensitivity and fluidity during underwater finning.

C4 Carbon Fin Bag

The C4 Carbon fin bag is made from waterproof, tear-resistant nylon, ensuring mechanical strength and long-lasting durability when transporting gear for freediving and spearfishing.

The simple, functional design features an adjustable shoulder strap and a dedicated strap, allowing you to comfortably carry fins or other underwater accessories over the shoulder, improving practicality and gear management.

Technical Features

• Length: 110 cm
• Width: 33 cm

The bag is designed to accommodate freediving fins of various sizes, offering a lightweight and versatile solution for transporting your gear.

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 Float for Buoy Line

The C4 float for buoy line is an accessory specifically designed for spearfishing. It allows the line to rise vertically from the diver, making it easier to manage and locate.

Technical Features

• Compatible with any type of line used in spearfishing
• Adjustable design to suit different operational needs
• Ensures the line rises vertically from the anchor point

Functional Advantages

The float makes it easy to immediately locate the exact position of the line on the bottom, simplifying retrieval operations and improving safety during freediving activity. Its adjustability allows better management of line tension and position, optimizing efficiency while spearfishing.

C4 Mounting Screw Kit for 250 Foot Pockets

The mounting screw kit is specifically designed for the 250 Foot Pockets from C4, allowing quick and secure attachment to spearfishing blades. The screws, featuring M6 threads, ensure precise installation with hand-tightening nuts, making attachment easy without the need for tools.

Technical Features

• Thread: M6
• Nut type: Hand-tightening for quick and easy assembly
• Compatibility: C4 250 Foot Pockets model
• Color: Black
• Quantity: Complete kit for mounting one pair of foot pockets

Benefits of Use

This kit ensures a stable connection between the foot pocket and the blade, maintaining the optimal alignment required for efficient power transfer during freediving finning. The choice of hand-tightening nuts improves practicality during assembly and maintenance, reducing setup time even when gear needs to be prepared quickly.

Water Rails Kit for Carbon or Composite Blades

The Water Rails kit is made of rubber and specifically designed for installation on carbon or composite blades used in freediving and spearfishing. This replacement kit is compatible with C4 blades and other brands, providing a simple and functional upgrade.

Technical features

• Height: 10.0 mm
• Length: 1 meter
• Constant-type side profiles
• Material: rubber suitable for mechanical strength in underwater environments

Application

The side profiles are attached to the blade by bonding with cyanoacrylate glue, ensuring a stable and long-lasting hold. This type of installation helps optimize the blade’s hydrodynamics, improving finning smoothness and responsiveness when moving through the water.

C4 Mistral Snorkel for Freediving and Spearfishing

The Mistral snorkel by C4 is designed specifically for the needs of freedivers and spearfishers, combining ergonomics and functional materials to ensure comfort and practicality in the water.

Technical Features

• Anatomical mouthpiece in hypoallergenic silicone: designed to provide comfort during extended sessions, helping prevent discomfort or irritation.
• Dual-durometer bi-material tube:
  • Central section in semi-rigid thermoplastic material to maintain shape and make breathing easier.
  • Upper section in soft material to improve flexibility and hydrodynamics.
• Available in 7 colors: Black, White, Camo Green, Gold, Ocean, Red, and Pirate, offering a choice that combines functionality with personal preference.

Benefits for Freedivers and Spearfishers

The Mistral snorkel’s construction ensures easy breathing and a high level of comfort, thanks to the anatomical mouthpiece and selected materials. The tube’s differentiated durometer improves fit and ergonomics, reducing bulk and optimizing its position in the water during dives.

Mesh Bag Small C4: mesh bag for freediving and spearfishing gear

The Mesh Bag Small by C4 is a mesh bag designed for effective, organized transport of freediving, spearfishing, and snorkeling gear. It is ideal for carrying fins, masks, snorkels, and other accessories, offering practicality and durability.

Technical Features

• Made from durable perforated fabric, it promotes quick drying and water circulation inside the bag.
• Reinforced tear-resistant bottom for greater durability even under load.
• Compact dimensions for the Small version: 85 x 10 x 35 cm, allowing compact, organized gear transport.

Use and Practicality

The Mesh Bag is ergonomic and easy to carry both out of the water and during freediving or spearfishing sessions, thanks to its lightweight construction and breathable structure. The mesh makes it easier to rinse wet gear, preventing water buildup and promoting drying during transport.

Variants

• Small: 85 x 10 x 35 cm, ideal for more compact gear.
• Big: 100 x 10 x 35 cm, for those who need more space and carrying capacity.

C4 Floating Line Winder for Freediving and Spearfishing

The C4 floating line winder is designed to provide practicality, organization, and maximum line management during freediving and spearfishing activities. Its structure ensures efficient line organization, essential for safe, smooth operation underwater.

Technical Features

• High capacity: allows you to quickly wind large amounts of line, keeping your gear organized and ready to use.
• Line-retaining eyelets: allow the line to be securely locked in place to prevent tangles and line loss during transport or use.
• Dual side handle: makes line rewinding easier, providing a comfortable grip and faster handling, essential during spearfishing sessions.
• Floating structure: improves practicality in the water, reducing the risk of accidental loss during dives.

Thanks to these features, the C4 line winder is an essential technical accessory for freedivers and spearfishers who need organized and efficient line management, ensuring smoothness and safety during underwater operations.

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.

C4 Antifog Extreme: Anti-Fog Solution for Masks and Goggles

C4 Antifog Extreme is an innovative anti-fog solution developed through the collaboration between C4 Carbon and Real Chimica, manufacturer of Chanteclair. Specifically designed to effectively eliminate fogging, it is ideal for freediving, snorkeling, and spearfishing masks, as well as swim goggles.

Technical Features

Thanks to its extremely powerful anti-fog performance, Antifog Extreme is compatible with both masks equipped with glass lenses and goggles with polycarbonate lenses, ensuring consistently clear, clean vision while in the water.

Fogging is caused by the silicone oils used during the high-temperature molding of silicone, which migrate from the skirt toward the lenses, forming a thin invisible film responsible for condensation.

Complete Anti-Fog System

To effectively address this issue, C4 has developed a system consisting of two complementary products:

• Absolute Cleaner: a dedicated cleaner that permanently removes silicone oils from the lenses.
• Antifog Extreme: an anti-fog solution that prevents condensation immediately before use.

This combination ensures maximum visibility and reliability for all freediving and spearfishing enthusiasts.

Certifications and Benefits

Antifog Extreme is the first patented and certified anti-fog solution developed with a specific focus on the professional elimination of fogging in underwater activities.

Instructions for Use

1. After treating the lenses with Absolute Cleaner, spray Antifog Extreme onto the inside of the lenses before wetting them.
2. Let it work for 2 minutes.
3. Rinse the mask or swim goggles.

Note: we recommend using the product immediately before use to ensure maximum anti-fog effectiveness.

C4 Cap for Freediving and Swimming

The C4 cap is designed specifically for freediving and swimming, ensuring comfort and functionality during dives and pool sessions. Made from high-quality hypoallergenic silicone, it delivers excellent durability and resistance to the stresses typical of the underwater environment.

The cap’s differentiated thickness provides an optimal balance between seal and comfort, while allowing easy adaptability to different head shapes. The extremely soft structure and ergonomic shape make it easier to put on and reduce the feeling of compression during extended dives.

The carbon-fiber-effect surface finish not only gives it a technical, refined look, but also preserves the elasticity needed for movement and makes the cap easier to manage in the water. Essential for anyone who regularly practices freediving and spearfishing, both in the pool and at sea.

C4 Mask Box for Freediving and Spearfishing

The C4 mask box is specifically designed to provide effective protection for freediving masks and other small accessories such as dive computers or keys. Its rigid, lightweight construction allows you to carry the contents safely without compromising their integrity.

Made of thermoformed polyethylene, the case offers optimal mechanical resistance against impacts and compression during transport and diving. The interior is fully lined with polyester fabric, which protects the mask lenses from scratches and abrasion, maintaining transparency and clarity during dives.

Technical Features

• Outer material: thermoformed polyethylene for strength and lightness
• Interior polyester fabric lining for complete protection of delicate surfaces
• Perimeter zipper closure for quick and easy opening
• Dimensions suitable for holding freediving masks and small accessories such as dive computers or keys

Benefits for Freediving and Spearfishing Use

The box ensures organized and safe handling of the mask, reducing the risk of damage from impacts or scratches during transport. The durable material and ergonomic zip-opening design provide quick access to accessories, improving practicality even during dives or travel.

C4 O-Ring for Sealing Floppers - Elasticity and Durability

The C4 O-Ring are sealing rings made from elastic material with a hardness of 50 Shore, specifically designed for Floppers used in spearfishing and freediving. Their elasticity makes them compatible with any type of shaft, while ensuring long service life thanks to the material’s high mechanical strength.

Technical Features

• Elastic material with 50 Shore hardness
• Compatible with different types of Floppers pins
• Innovative integrated tab for easier grip
• Black color for quick identification
• Greater elasticity than the 60 Shore hardness version

Advantages for Underwater Use

The special tab makes the C4 O-Ring easy to grip even while wearing spearfishing gloves, improving practicality during Floppers replacement or maintenance. The superior elasticity compared to harder O-Rings allows better adaptability and excellent sealing, while maintaining adequate resistance over time.

Applications

Designed for installation on freediving Floppers, these O-Rings ensure effective retention of fastening elements, helping keep finning stable and secure thanks to the correct position of the Floppers. The choice of a 50 Shore hardness material provides an optimal balance between flexibility and mechanical strength for continuous use in underwater environments.

C4 Cap for Shaft Protection

The C4 Cap is specifically designed to protect the tips of Shafts used in freediving and spearfishing. Made from durable materials, it provides effective protection against impacts and the risk of damage during transport or storage.

The cap features holes that allow the shooting line to pass through, making it easier to secure or retrieve without the risk of losing the cap. This feature improves ease of use in the water and during equipment assembly or maintenance.

Thanks to its high visibility, the cap is easy to locate, reducing search time and increasing safety when handling the shaft.