Abstract: An elastic apparatus to be incorporated within a buoyancy compensating jacket to be used by scuba divers which is to maintain the jacket in a tight position on the torso of the scuba diver whether the diver is submerged in the water or is out of the water. The elastic apparatus comprises a plurality of stretchable elastic strips which are either mounted in conjunction with the jacket or are mounted in conjunction with a belt which is to be worn on the outside of the jacket.