Tough 1 Western Shim PadThis pad is constructed of comfortable moisture wicking felt, with rugged wear leathers and canvas cover, making it durable to withstand everyday use. Six shim pockets are strategically located giving you the ability to correct a variety of saddle fitting issues by removing the felt shim pads that are included with this pad. The western contour shim saddle pad can used as a stand alone pad or under a saddle blanket.