280-Gram Segment for C4 Dyno Freediving Neck Weight

This 280-gram segment is designed specifically for the C4 Dyno neck weight, 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 activities.

Technical Features

• Screw fastening: The system allows multiple segments to be combined, enabling a configuration that adapts to the individual needs of the freediver.
• Semi-mobile movement: Once fastened, the segments retain a degree of mobility, following the natural curve of the vertebrae and ensuring no restrictions on spinal movement.
• Material and weight: The segment weighs 280 grams, offering a good balance between durability and lightness, ideal for avoiding unnecessary load on posture during a dive.
• Color: Black, for a clean, understated look and good integration with spearfishing gear.
• Complete package: The product is supplied with pin and screw for immediate attachment to the C4 Dyno neck weight.

Functionality and Benefits

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

280-Gram Segment for Dyno C4 Neck Weight Specifically for Freediving

The segment is designed for the Dyno C4 neck weight, a device developed exclusively for the needs of spearfishing and freediving.

Made with a lightweight 280-gram structure, it ensures optimal load management without affecting underwater mobility.

Attachment System and Functionality

The segment uses a screw fastening system that allows multiple segments to be combined and assembled in a modular way, adapting them to the freediver’s anatomical profile and specific needs.

Once secured, the pieces remain semi-mobile, allowing excellent fluidity of vertebral movement without limiting the spine’s natural flexibility during the dive.

Technical Features

• Color: White
• Materials selected to ensure mechanical strength and durability in underwater environments
• Complete with pin and screw for fastening, for precise and secure assembly

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.

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.

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.

C4 Universal Stainless Steel Bracket

The C4 universal bracket is made of stainless steel, ensuring high mechanical strength and durability in the marine environment. This material provides robustness and long service life without corrosion, an essential feature for spearfishing and freediving equipment.

Designed to provide stability and easy installation, the bracket can be fitted quickly and securely, allowing efficient assembly of underwater components.

Compatibility and Use

• Compatible with all C4 slides, enabling a modular and versatile system for spearguns and accessories.
• Universal system suitable for various configurations in freediving and spearfishing equipment.

C4 Universal Stainless Steel Slide

The C4 universal slide is made with the same stainless steel as the bracket, ensuring consistent strength and corrosion protection.

It allows components to be fastened with precision and solidity, ensuring stable tracking and balanced trim for the spearfishing gun.

Compatibility

• Compatible with all C4 brackets, making it easy to adapt and customize underwater configurations.

C4 Anatomical Insoles for Freediving and Spearfishing

The C4 anatomical insoles are specifically designed for freediving and spearfishing users, with special attention to shape, design, and materials to improve comfort and performance in the water.

The anatomical structure of the insoles helps reduce empty spaces inside the foot pockets, often caused by the symmetrical shape of the right and left foot. Without dedicated insoles, these spaces can lead to reduced fit and heat loss.

Technical Features and Benefits

• Comfort and fit: the insoles help support the plantar arch, ensuring a precise, stable fit inside the foot pocket and reducing fatigue during finning.
• Improved finning control: the better fit allows more efficient transfer of propulsive force, optimizing thrust and fin responsiveness during freediving.
• Thermal insulation: reducing empty spaces limits the flow of cold water, keeping the foot at a more stable temperature and reducing the risk of muscle cramps in the water.
• Compatibility: perfectly adaptable to C4 foot pockets and suitable for use with most foot pockets on the market, thanks to the option to trim them along predefined lines.

Size Specifications

The C4 insoles are available in three size ranges, covering a wide range of usable Sizes:

• 38-41
• 41-43
• 44-47

The insole can be shaped along the pre-marked cutting line to achieve a custom size and optimal fit inside the foot pocket.

Ultrastretch C4 Undersuit for Freediving and Spearfishing

The Ultrastretch C4 Undersuit is made with smooth neoprene on the outside and stretch-lined neoprene on the inside, delivering an excellent combination of comfort and flexibility. The pre-shaped cut is designed to fit the body perfectly, with extra length in the pelvic area to optimize thermal retention during freediving sessions and spearfishing activities.

The longer design over the pelvis improves thermal protection under the wetsuit, making it especially useful during seasonal transitions or for those who prefer to avoid overly thick wetsuits. This undersuit is compatible with most wetsuits on the market, making it extremely versatile and practical for freediving or spearfishing.

Technical features

• Material: smooth neoprene on the outside, stretch-lined neoprene on the inside
• Thickness: 2 mm
• Pre-shaped cut with extended coverage in the pelvic area for greater thermal protection
• Suitable as an undersuit for all types of wetsuits

The stretch of the fabric ensures freedom of movement and unrestricted comfort during dives, while the reduced thickness provides lightness and quick donning. The Ultrastretch C4 undersuit helps keep body temperature stable, increasing the efficiency of your freediving and spearfishing sessions.

Ultrastretch C4 Undersuit with Hood

The Ultrastretch C4 undersuit is designed with a pre-shaped cut, featuring greater extension in the pelvic area to ensure enhanced thermal protection during freediving and spearfishing sessions. The integrated hood further improves insulation and thermal comfort.

Made with 2 mm smooth Neoprene on the outside and lined internally with stretch material, this undersuit provides excellent elasticity and freedom of movement, making it easy to wear under any type of freediving wetsuit.

Thanks to its construction and calibrated thickness, it is ideal during seasonal transitions or for those who prefer balanced thermal protection without switching to thicker wetsuits. Its lightweight design and ease of use help optimize comfort in the water while maintaining good thermoregulation efficiency.

Main technical features

• 2 mm smooth Neoprene exterior for mechanical resistance and hydrodynamic performance
• Stretch inner lining for improved fit and comfort
• Pre-shaped cut with greater length in the pelvic area for enhanced thermal protection
• Integrated hood for effective coverage and insulation
• Compatible with all wetsuits currently on the market
• Available in four sizes: 2, 3, 4, and 5

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 Luxo Dive Light

The Luxo light by C4 is designed specifically for freediving and spearfishing, combining compact dimensions with high light output.

The housing is made from anodized aluminum, a material that ensures light weight, mechanical strength, and durability in underwater environments, making it easier to handle during dives.

The LED light source delivers a beam intensity of 20,000 lux, providing effective illumination in spearfishing situations where underwater visibility is critical.

Activation is via a magnetic slide switch, designed for simple, immediate use even when wearing freediving gloves, improving practicality in underwater conditions.

• Anodized aluminum body for strength and light weight
• 20,000-lux LED light beam
• Magnetic slide switch, easy to operate with gloves
• Compact size for easy transport and handling

C4 Torpedo Buoy for Spearfishing

The C4 Torpedo buoy is designed specifically for spearfishing in bluewater, made from durable 0.7 mm high-visibility PVC. This material ensures excellent mechanical resistance and long service life even in the marine environment. Its high visibility makes the buoy easy to spot in open water, improving safety during underwater activity.

Technical Features

• 0.7 mm PVC construction, strong and durable
• Oversized valve for inflation up to 2 bar, allowing fast and secure air filling
• Two side handles and one rear handle for easy handling and transport
• Two D-rings and stainless steel swivel snap hook, for securing gear or ballast
• Supplied with inflation adapter and standard bicycle pump, for practical use even in the field
• Available in three capacities: 15L, 30L and 45L, adapting to different spearfishing needs

Benefits for Freediving and Spearfishing

The rugged construction and oversized valve improve inflation efficiency, reducing preparation time on the surface. The ergonomic handles allow good control of the buoy while swimming or retrieving it, while the stainless steel D-rings provide reliable anchor points resistant to marine corrosion.

The choice of three sizes lets you select the most suitable volume based on dive depth and the type of gear carried, ensuring the right balance between buoyancy and bulk.

Extreme 60L Waterproof Backpack for Freediving and Spearfishing Gear

Extreme 60L is a waterproof backpack made from PVC Tarpaulin, a highly durable, waterproof, and tear-resistant material, ideal for carrying freediving and spearfishing gear.

With a capacity of 60 liters, this backpack lets you comfortably carry all the essential underwater gear while keeping it protected from water and external elements.

Technical Features and Functionality

• Large capacity and ergonomic shape for carrying wetsuits, cylinders, accessories, and apparel specifically for freediving and spearfishing
• Adjustable side elastic attachments for securely and conveniently fastening spearguns
• Dedicated front pocket for carrying fins, with a top clip opening for easy access and watertight closure
• Adjustable shoulder straps with a central safety buckle to ensure stability and comfort while on the move

Materials and Durability

The PVC Tarpaulin used provides mechanical resistance to abrasion, complete waterproofing, and long-lasting durability even in marine environments. These features ensure effective protection for freediving and spearfishing equipment during transport and dive sessions.

Comfort and Ease of Use

The Extreme 60L backpack is designed to make it easier to carry long, bulky gear such as fins and spearguns, thanks to the external attachments and dedicated pocket, without compromising handling. The adjustable shoulder straps improve weight distribution and stability, offering superior comfort during long preparation sessions or when moving to dive spots.

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.

Standard Cordura C4 Fin Bag

The Standard Cordura Fin Bag by C4 is made from waterproof ripstop nylon, ensuring mechanical strength and long-lasting durability, even in underwater environments.

Designed as a bag/backpack, it allows you to easily carry your fins and part of your freediving and spearfishing gear, optimizing space and practicality.

Main features

• Cordura structure resistant to tensile stress and abrasion
• Dedicated external pocket for storing a mask, snorkel, or other essential freediving accessories
• Versatile design that combines functionality and comfort while traveling

This bag is ideal for freedivers and spearfishers who need a reliable storage solution for transporting their specialized gear, maintaining a balance between compactness and carrying capacity.

Top Volare Bag by C4

The Top Volare Bag by C4 is made from PVC Tarpaulin, a durable, waterproof, and tear-resistant material, ideal for protecting freediving and spearfishing gear.

This bag/backpack is designed to fit fins of any size currently available on the market, while also providing space for a wide range of underwater gear.

It can comfortably hold a wetsuit, gloves, booties, and other essential accessories for freediving sessions, ensuring practicality and easy transport.

Main Features

• Material: waterproof and tear-resistant PVC Tarpaulin
• Capacity: compatible with long fins and complete gear
• Use: ideal for carrying wetsuits, gloves, booties, and spearfishing accessories
• Design: large bag/backpack for efficient gear management

Top Volare Spearfishing - Technical Bag/Backpack for Freediving and Spearfishing

Top Volare Spearfishing is a bag/backpack made from PVC Tarpaulin, a waterproof and tear-resistant material, ideal for carrying freediving and spearfishing gear.

Its generous dimensions (Length 121 cm, Width 33 cm, Depth 20 cm) make it suitable for carrying any fin model, including extra-long fins, along with a wetsuit, gloves, and socks, providing a compact and complete transport solution.

Technical Features

• PVC Tarpaulin material, waterproof and tear-resistant, for effective, long-lasting gear protection
• Main compartment with semi-perimeter double-slider zipper for easy access and organization
• Four dedicated side elastic attachments for secure transport of spearguns, optimizing gear management
• Internal neoprene pocket designed to protect the tips of carbon blades during transport, preserving their integrity and performance
• Dedicated external pocket for conveniently storing other accessories such as knives, mask, and snorkel
• Adjustable shoulder straps, improving comfort and practicality while on the move

Applications

This bag/backpack is designed specifically for freedivers and spearfishers who need a rugged, functional solution for carrying large fins and spearfishing gear. Its technical design and attention to materials ensure efficient, secure gear management on every trip to the water.