GelStep Medium Recovery Heel Cup Soft Center Spot No Cvr Md Traction Tables * Hand operated air spring pneumatic Hip Kits * Hand operated air spring pneumatic height adjustment does not allow penetration of bacteria * Secures with durable Delrin side release buckle * UNCOVERED * Medium 1 Pair * Dual durometer for maximum comfort while standing walking or running * Medium durometer silicone in main body efficiently absorbs impact and recovers quickly * Softer silicone blue zone under heel center maximizes shock absorption and comfort at point of impact * 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 *