Seac Diablo Diving Bcd Vest Power inflator with sphere control system for the optimal management of high volumes of air. Rear weight pockets fixed directly to the tank strap for optimal buoyancy. Rear weight pockets fixed directly to the tank strap for optimal buoyancy. Ultra-comfortable backplate made in highly resistant and non-abrasive materials. Material outer bladder: PU coated 1000 D Cordura. Material inner bladder: PU coated 420 D Nylon Dump valves: 3 with pull command. D-rings: 6 - 50 mm in stainless steel + 2 - 25 mm in stainless steel. Dry weight (size L): 4400 g (complete with hose and weight pocket).