Spenco® Performance Gel Arch Cushions help stabilize and balance the foot to provide the extra comfort and support needed for optimum performance. The dual density Thermoplastic Rubber Gel provides superior cushioning to help absorb shock, provide support in the areas that need it most and improve overall foot comfort. The antimicrobial top cloth helps keep the arch cushion in place and eliminate odor causing bacteria. Correct arch placement and proper heel cupping cushion impact and shock where the heel needs it most. The length allows for extra toe room in tighter fitting shoes. Three sizes: Small, Medium and Large. One Year Unconditional Guarantee. DISC LIMITED QUANITYS.