weight belt

a belt worn by divers to help them stay balanced and not float too much underwater

A weight belt is a piece of diving equipment worn around the waist to help divers maintain proper buoyancy underwater. It holds weights to counteract the body's natural buoyancy, allowing the diver to stay at the desired depth without floating to the surface. The belt is particularly useful when a diver needs to descend or stay submerged for extended periods. It can be adjusted to hold varying amounts of weight, depending on the diver's needs, and is typically worn over a wetsuit or drysuit.