This is the Aqua Lung Leg3nd Scuba Diving Octopus The Leg3nd Octopus provides the same great performance as the Leg3nd primary second stage. Features: The LEG3ND octopus is pneumatically-balanced resulting in smooth and easy breathing A heat exchanger (patented) which surrounds the valve mechanism, dissipates the cold caused by gas expansion while drawing in the warmth of the ambient water The easy-to-grip venturi lever prevents unwanted freeflow at the surface while giving a performance boost at depth Includes 1m yellow hose and yellow front cover making it easy to locate in an emergency