Pressure compensating buoyancy jacket

In combination with a pressure compensating buoyancy jacket usable by a scuba diver when submerging in water, said jacket being constructed of an inner layer and an outer layer, said inner layer and said outer layer overlapping each other, said jacket having a confining volume with the torso of the diver to be located within said confining volume, a pressure compensating device comprising:

• elastic means mounted between said inner layer and said outer layer, said elastic means being movable between a relaxed position and a totally stretched position, with said elastic means being in said relaxed position said confining volume being of minimum size and said inner layer forming a first loop of material at said elastic means and said outer layer forming a second loop of material at said elastic means, with said elastic means being in said totally stretched position said confining volume being of maximum size with said first loop and said second loop being eliminated with said inner layer and said outer layer forming a continuous complete structure, whereby when said jacket is worn by a diver outside the water said jacket is to be worn with said elastic means at or near said totally stretched position, when the diver submerges to a sufficient depth the water pressure will cause a wetsuit of the diver to condense tending to cause the jacket to become loose on the torso of the diver but said elastic means moves toward said relaxed position which causes said jacket to remain tight on the torso of the diver.