This is the IST J-1700 Mercury BC/BCD Scuba Diving Buoyancy Compensator Features: Durable 420D TPU coated Nylon shell Cold water capable power inflator (IF-301) with pull dump 2 additional rear quick dump valves Adjustable sternum strap 2 rear trim pockets take up to 1KG (2.2lb) of weight each 2 integrated weight pockets Padded backpack All new designed waterproof dump valves that prevent water from entering the bladder when deflate CE approved