Contoured orthopedic grade felt top with maize fleece bottom. Poron XRD ™ and memory foam build-up is specifically designed to relieve shoulder strain and pressure. The CorrectFit Saddle Pad helps with hard to fit conformation, high withers, narrow shoulders, asymmetrical muscle development and poor saddle fit. The Poron XRD ™ provides a protective shield that absorbs up to 90% of force-protecting from pressure and relieving strain and soreness. The uniquely designed build-up evenly aligns horse, pad and saddle for the CorrectFit every time!