the HMS PA3998 leather weight belt is used to stabilize the spine and back muscles during strength training. It is most often used during squats with a barbell, or deadlifts, when you move around the maximum weight you can lift. When the belt is used correctly, the possibility of back injury is minimised. the belt is made of two pieces of leather that are sewn together with a strong thread. For greater comfort, the PA3998 is filled with a layer of foam in the lumbar area.