Royal Racing Matrix 2 Shorts Shell: 100% polyester Liner: 95% polyester, 5% spandex Imported Diamond Grid Polyester/Spandex 2 way stretch fabric No fade sublimated graphics Waterproof audio pocket with cable routing Internal Velcro waist adjusters for a secure fit and easy adjustment Detachable padded liner Diamond Grid Polyester/Spandex 2 way stretch fabric No fade sublimated graphics Waterproof audio pocket with cable routing Detachable padded liner