15 1/2" wide x 17" long with 1" foam along cantle and molding in seat cushion. The Luxury is designed to fit most western saddles. The careful engineering of the Cashel Tush Cushions® make hours in the saddle more comfortable. Made with the same closed cell foam as the popular Cashel® Cushion saddle pads, they will not collapse or give the way open-cell foam can. They will not compact, bunch up, or absorb and hold heat. Adjustable nylon straps hold your it firmly in place, preventing the sliding and shifting problems experienced with other seat savers. The Tush Cushion does not interfere with your balance and seat in the saddle; it just makes it much more comfortable.