Our Contoured Saddle Pad Liner is the answer to keeping saddle pads clean and protected. Made from 1/4" needle punch felt, the 80% wool 20% poly blend is designed to be long lasting and the contoured design creates a perfect fit. Professional"s Choice Contoured Saddle Pad Liner is the perfect complement to your SMx Air Ride saddle pad. Fits under most western saddle pads. Size: 30" x 29".