UNCOVERED * Small 1 Pair * Dual durometer for medial-side or spur/fascia relief and maximum comfort while standing walking or running * Medium-durometer silicone in main body efficiently absorbs impact and recovers quickly * Softer silicone blue zone area provides increased comfort and pain relief * Retains shape - will not deform or degrade with use * Optional anti-microbial cover absorbs odor prevents bacterial growth and allows foot and insert to slide easily into the shoe * Washable and reusable *