Product Description DUAL BLADDER: Inflator hoses and Dump valves are interchangeable for a variety of unique hose configurations. The dual bladder model features a total of four (4) pull dump valves located: Diver's Side bladder: lower left and top right Tank Side bladder: lower right and top left POWER DEFLATION / ORAL INFLATION: The unique elastomeric bands (use is optional) assist in deflation, but still allow the diver to orally inflate the BC. ELIMINATION OF AIR SHIFT: The OMS elastomeric bands evenly compress the BC, eliminating the massive air shift associated with non-banded BCs that typically occurs when changing body plane. LOW DRAG / LOW SNAG: The OMS bands typically retract the BC to a width less than the diver's shoulders, greatly reducing Drag and Snag potential. TRIM ADJUSTABILITY: By adding or eliminating bands in different parts of the BC, the diver can adjust: a) lateral trim to compensate for stage bottles, cameras, etc. b) Horizontal trim, e.g. head up, down or level Dimensions: 36.5"w x 25" h Weight: 6.33 lbs Max Buoyancy: 100 lbs lift Bag Material: 1000 Denier Nylon with 5-6 oz polyurethane (PU) backing Bladder Material: 210 Denier Nylon with 3.8 oz PU backing Silicon Bands: Yes