Developed from the horse's back up, the Comfort-Fit SMx Air Ride Saddle Pad is contoured to follow the curve of the horse's spine. As a result, the pad locks in place on the horse's back, allowing full movement. The SMx Air Ride core is made of a unique material found in the protective gear of professional human athletes for absorbing shock while allowing air flow to the skin, creating a natural cooling system lowers the horse's body temperature and slows the rate of fatigue. Available with a soft merino wool lining that wicks away moisture. Measures 33'' X 38'' with a 3/4'' core.