Best divers apnea collar, black

Exclusive to Best Divers Horizontal apnea practice collar we have designed and manufactured this tool to allow you to get a perfect trim during diving. Our collar (filed model) has been designed to move the center of gravity of the weight from the neck to the posterior apex of the lungs. The elongated design allows you to lighten your neck from excess weight and achieve a better fit. The two "wings" are shaped to prevent the collar from rotating and are filled with nickel plated lead balls. Nickel plating prevents oxidation. The two "wings" contain a fixed weight of 500 grams, total weight of the collar 1 kg. Through the two pockets you can add weight to the collar until you reach your ideal "weighing". Both pockets can hold up to 1 kg extra - maximum weight of 3 kg. Materials the Best Divers collar is made from a set of premium materials: - Black outer in original cordura - Airnet spacer Plus padded interior, water repellent adjustment and closure We chose the Velcro closure to ensure quick release when needed. You can adjust the collar by varying the size from 38 to 48.