C4 Carbon Weight Backpack Up to 10kg – Spearfishing & Freediving Gear

C4 Carbon Weight Backpack Overview

The C4 Carbon Weight Backpack up to 10kg is a premium dive weight vest engineered for spearfishers, freedivers, and underwater hunters who require stable, ergonomic ballast placement with maximum comfort and safety. Designed to hold up to 10 kg of weight, this backpack-style solution replaces traditional belt systems, promoting a more balanced weight distribution and a smoother underwater trim.

Featuring robust construction and thoughtful ergonomics, the vest wraps around the torso to help maintain an ideal body position underwater. This improved trim reduces drag and conserves energy during dives, allowing you to focus on performance rather than gear management.

The adjustable internal weight pouch accommodates a variety of weight amounts up to 10 kg, giving you the flexibility to fine-tune buoyancy depending on depth, suit thickness, and personal preference. In addition, this weight backpack includes an easy-to-use quick-release mechanism to ensure fast removal when needed, enhancing safety during surface intervals or emergency situations.

Finished with durable materials meant to withstand saltwater, UV exposure, and repeated loading cycles, the C4 Carbon Weight Backpack is a long-lasting and essential addition to any serious freediver’s or spearfisher’s kit.

Key Features

• Up to 10 kg Weight Capacity — Holds significant ballast for deep dives and thick wetsuits

• Ergonomic Backpack Design — Distributes weight evenly across the torso for better balance

• Quick-Release System — Fast and reliable weight removal for safety and convenience

• Durable Construction — Built for repeated underwater use in saltwater environments

• Adjustable Fit — Customizable sizing for different body types

• Low Profile & Streamlined — Minimizes drag to preserve hydrodynamics

• Comfortable Straps & Padding — Reduces pressure and increases comfort during long sessions

Why Choose the C4 Carbon Weight Backpack up to 10kg

Traditional weight belts often concentrate weight around the waist, which can negatively affect balance and trim. The C4 Carbon Weight Backpack addresses this by moving ballast closer to your body’s center of gravity. This promotes a more natural underwater posture and improves efficiency during descents and ascents.

Moreover, the backpack configuration reduces lower back strain and prevents weight shifting during movement — a common issue with standard belts, especially under heavy loads. The internal weight pouch system also allows fine adjustments, so you can tailor buoyancy precisely for different conditions.

The quick-release system adds a layer of safety, enabling you to shed weight swiftly if needed, such as on the surface or in emergency scenarios. This feature, combined with robust materials and thoughtful design, makes this backpack an ideal choice for demanding spearfishing and freediving sessions.

Recommended For

• Spearfishing

• Freediving

• Underwater hunting

• Technical seawater dives

• Divers who prefer a stable weight distribution system