The Atmos is a durably-constructed, full-featured hybrid air-cell BC. Unique, hybrid rear-inflation bladder enables air to shift," which provides maximum amount of lift and keeps you properly orientated on or below the surface. BC has 20 lbs. (9 kg) of integrated releasable weight in the Pinch & Release System and 10 lbs. (4.5 kg) non-releasable trim weight capacity. Padded back-plate features an extended lumbar support to transfer tank weight onto hips, relieving shoulder stress. Three (3) over pressure relief/pull dump valves optimize buoyancy control and trim while diving. Easy inflation/deflation with the Oceanic's versatile power inflator equipped with an internal pull dump cable attached to one of the 3 overpressure/dump valves. The BCD comes with a 3/8" threaded low pressure quick-disconnect hose. Crucial areas of the BC are constructed of 1000D denier Cordura fabric.2 large, zippered pockets with knife mounting grommets and strategically placed D-rings allow for storage and attachment of accessory items. BCD has an adjustable depth-compensating cummerbund. Adjusting the BC to fit is made easy with the torso, sternum and waist straps all equipped with "squeeze-style" side-release buckles. BC comes with a durable cylinder cam buckle and strap for tank mounting and security. The Atmos BCD provides from 31 lbs. to 60 lbs. (14.6 kg to 27.2 kg) of lift depending on size. BC comes with an owner's manual.