. Medium in size but mighty in comfort, this second stage octopus offers natural, effortless breathing at all depths. Its sturdy and durable, offers a superior resistance to abrasion and features a high visibility yellow cover and hose, a mesh grid cover and downstream valve.Mesh Grid: Patented design that reduces the impact of water flow onto the second stage diaphragm, thus eliminating free flows even in strong currentsFluid Dynamic Deflector: Receives and properly directs the airflow from the bypass tube to the mouthpieceUltralight Techno Polymer: Abrasion resistant and affordable, ideal for diving in warm and moderate water temperaturesVortex Assisted Design (VAD) System: The air bypass tube sends air to the mouthpiece creating a swirling vortex with a low pressure area in the center that keeps the diaphragm down during inhalation, for very easy breathing at all depths. In cold water diving, this system prevents ice crystals (which can be generated by the expansion of humid air in cold temperatures) from interfering with the proper operation of second stage components.Carbon Technology: Lightweight, exceptional mechanical resistance and high thermal conductivity make carbon the perfect material for the most demanding divers in every condition.Features:Material: CarbonWeight: 13.5oz. (385g)Two year limited warranty