A buoyancy compensator vest, for providing buoyancy at various underwater
depths, having a rigid back board, for supporting an air tank vertically
on the rear surface of the board at the back of the diver, surrounded in
part by a bladder, for inflating and deflating, and a vest back panel
including a pair of spaced-apart over-the-shoulder straps projecting from
the top panel edge for joining with a pair of side portions extending
about the chest of the diver, and a waist belt passing from behind the
compensator vest about the panel side portions and the user's waist to
complete the vest, the improvement of a pouch, defined by front and rear
surfaces and including an openable panel to expose the interior thereof,
the pouch interposed the back board and the scuba diver's back and
containing a cushion for placement against the back of the diver, to
cushion the back board and tank against the diver's spine, the pouch
having openings formed therein to allow filling and draining of water
during underwater activities, and a flexible strap located in the pouch,
pre-bowed outward toward the diver's back and arranged so that the
flexible bow is non-collapsible.