Used for fastening a harness and backplate securely to a diver's body, one end of the strap is threaded onto the backplate and the other end with a loop is placed on the waist belt webbing. The crotch straps keep the harness in place during water entry. By using a crotch strap, divers can prevent their gear slipping upwards on the body in the water, reducing the likelihood of the tank touching the back of the head during a dive. Crotch Straps include a stainless steel scooter ring for use with diver propulsion vehicles (DPVs). The ring is also a convenient place to temporarily clip off an item to free your hands, such as a lobster snare or camera.