A weight system for a scuba diver that has a pocket for housing a weight with an opening on the bottom and a releasable flap for covering the opening. When the releasable flap is in a closed position. the opening is covered to keep a weight in the pocket, and when the releasable flap is in a released position, the opening is uncovered to allow the weight to fall out of the pocket due to gravity. The apparatus also includes a way for opening one end of the releasable flap and attachment devicesto secure the pocket to an underwater diving harness.