Anti-Thrust Harness rests on top of the seat under thebuttocks, with the anterior straps coming between the legs andoutward over the thighs, buckling near the proximal hip/thigh.The Anti-Thrust Harness helps to prevent sliding forward in theseat and can reduce the tendency for pelvic rotation, withoutrestricting upper body movement. Made from nylon coveredneoprene with adjustable straps.