Thick orthopedic fleece center absorbs shock and disperses pressure. Premium grade felt bottom with shock absorbing wool felt center. Closed-cell foam shim is wedge-shaped to alleviate saddle fit issues. Contoured to fit the horse’s shape more closely. Alleviates “downhill" saddle fit due to atrophy or conformation issues at the withers. Adjustable correction; slide forward for less, slide back for more.