This is the Cressi Start Pro 2.0 BC/BCD Weight Integrated Bouyancy Compensators Features: 2 Large Accessory Pockets with hook and loop Closures Rigid, Fully Padded Back Support Panel 3 Relief/Overpressure Valves (rear/shoulder valves w/front pull knobs) Cressi Commando Power Inflator w/3/8 Threaded LP Quick-Disconnect Hose Plastic D-Rings for Accessory Attachment Rigid Padded Backpack w/Carry Handle: Stability & Ease of Transport Torso Adjustable Shoulders Adjustable Sternum Strap Adjustable Waist Strap with Cummerbund Pad for Comfort All Straps Equipped with Squeeze-Style Side-Release Buckles Quick-and-Easy Donning and Doffing Lift Capacities:29.2 lbs. to 45 lbs. (13.25 kg to 20.4 kg) Size Dependent Single Cam Cylinder Band BCD Weight: 4.8 lbs. to 6.2 lbs. (2.1 kg to 2.8 kg), Dry The BCD has three over-pressure relief/dump valves with two located on the left and right shoulders and a third lower valve on the rear right of the air cell. All three can be manually dumped two with pull cords and the other with the power inflator mechanism. BCD has two techno-polymer D-rings and two additional spring clip holder rings for attachment of instruments and accessories. "