You get a lot of BC with IST's J-1200 Hydro D. This full-featured, light weight, back inflation BC is constructed of rugged 840 denier nylon with a harness system that can be easily adjusted to provide a personalized fit. It also has a nicely padded backpack, three remote exhaust valves and a double-locking integrated weight system. The replaceable inner air cell has a protective 3-D spandex gusseted outer shell and is horseshoe-shaped, which enables the tank to be positioned closer to the body. Removable bungee straps rein in the air cell at depth to minimize hydro drag, and during recent ScubaLab tests, the three remote exhaust valves allowed test divers to easily control their buoyancy in all diving positions. Test divers agreed that the Hydro D was comfortable and stable at depth, and the double-locking weight ditch handles dropped the weights without problem. They also liked the responsive, compact power inflator that has a convenient pull-dump feature.
The bottom line: The Hydro D is packed with features that make diving more convenient. It offers a lot of adjustment to customize your fit, and is comfortable and stable underwater.