This is the ScubaPro Hydros X Men&';s BC/BCD with Balanced Power Inflator Features: World&';s first front-adjustable BCD to offer a fully injection molded Monprene rubber harness Constructed of EndurTex high-tenacity 420 lightweight nylon fabric bladder Monprene rubber harness doesn&';t absorb water to minimize drying time Quick-release shoulder buckles allow you to route your shoulder straps to optimize fit Super Cinch tank buckle system locks the tank in solid for stability at depth Maximum comfort for avid divers seeking a front-adjustable BCD.