To help offset the positive buoyancy of a scuba diver's body, wet suit and equipment a scuba diver needs to wear weights while scuba diving. Scuba diving weights and weight belts are available in a few styles. You may want to test more than one type of scuba diving weight system, before you buy, to ensure the scuba diving weight system works best for you.
The scuba diving weight systems available include the traditional nylon weight belt with solid weights that slide on and off the belt, weight harnesses and buoyancy compensators with an integrated weight system. The actual scuba diving weights are available as solid weights or bags filled with pieces of lead shot, similar to a bean bag.