ScubaPro Knighthawk BCD w/AIR 2 5th Gen Back flotation positions the air cell in back, providing exceptional freedom of movement while decreasing hydro-drag by reducing bulk. Three-dump deflation system lets you to dump air from a variety of underwater positions. Compression straps rein in the air cell when it is deflated and contribute to optimum volume control. Rotating quick-release shoulder buckles allow you to optimize the routing of your shoulder straps to maximize fit. Dual zippered pockets -- one an expandable roll out -- provide lots of cargo-carrying capability.