C4 Weight Backpack 12kg MB– Spearfishing & Freediving Weighted Vest

C4 Weight Backpack 12kg

The C4 weight backpack 12kg is a professional buoyancy solution for spearfishing and freediving. It replaces the traditional weight belt with a more stable and ergonomic system. Instead of loading weight on your hips, this backpack distributes ballast across your upper body. As a result, you achieve better trim, improved comfort, and more efficient movement underwater.

Spearfishers and freedivers often struggle with shifting belts and uneven balance. Therefore, the C4 weight backpack 12kg offers a secure and controlled way to carry additional ballast. The internal compartment holds up to 12 kilograms of weight while keeping everything tight to your body. In addition, the slim profile keeps hydrodynamics optimal during descents and ascents.

Moreover, this system reduces fatigue during long sessions. Because the load spreads across your torso, there is less pressure on the lower back and hips. This is especially important when diving with thick wetsuits or in deeper water where more lead is required.

Key Features of c4 weight backpack

• Capacity up to 12kg of weights

• Ergonomic backpack design for ideal trim

• Internal weight pocket for secure positioning

• Adjustable shoulder and waist straps

• Quick-release system for safety

• Hydrodynamic, low-profile shape

• Durable materials resistant to saltwater and abrasion

Better Trim and Stability Underwater

Traditional weight belts tend to rotate or slide during movement. However, the C4 weight backpack 12kg stays fixed in position. Because the weight sits higher on your body, you maintain a more natural horizontal posture. This improves finning efficiency and reduces unnecessary drag.

Furthermore, stable ballast placement helps during freefall and bottom time. You do not need to constantly readjust your position. Instead, you can focus fully on breathing, technique, and the dive itself.

Comfort During Long Dives

Long spearfishing sessions require comfort as much as performance. Therefore, this backpack design minimizes pressure points. The straps adjust easily to fit different body shapes and wetsuit thicknesses. In addition, the soft contact areas prevent chafing during repetitive movements.

You can also combine this backpack with a light belt setup. This allows fine buoyancy tuning depending on depth, conditions, and personal preference.

Safety First

The integrated quick-release system allows immediate weight drop if necessary. This feature is critical in emergency situations or during surface recovery. Because of this, the C4 weight backpack 12kg offers both performance and safety in one solution.

Who Is It For

This product is ideal for:

• Spearfishers diving in deeper water

• Freedivers needing additional ballast

• Divers who dislike traditional weight belts

• Long sessions where stability and comfort matter most