D&D da is the evolution of the already well-known Dyno collar made by the brand C4, perfect solution for both deep and dynamic divers. It is from this characteristic that the D&D Collar, Deep & Dynamic, is named after him. The innovation of the D&D lies in the ability to modulate the weight starting from 1 kg for deep diving up to 4 kg for dynamic diving, all in one product! Made of lead coated thermoplastic rubber with a highly hydrodynamic shape, designed not to overload the swimmer's neck and to make freediving much more effective. The weight goes to work much closer to the point where the buoyancy forces balance, and because of the semi-mobile segments that follow the movement of the dorsal vertebrae, the swimmer is not restricted in any way in his or her movements. It is a weight system consisting of a modular, adjustable collar to which other semi-mobile segments of varying weight can be added at the back. D&D is sold complete with numbered plastic segments to replace the front arm leads and Safety Clips to prevent the risk of accidental loss. Weight: 4.0 kg. Color: Black. Read more
