Men 12-13 * Spenco© PolySorb© Replacement Insoles are designed to cushion support and stabilize your feet through improved balance and alignment shock absorption energy return and friction reduction for lasting foot comfort while boosting the performance of your athletic shoes * Total support with targeted cushioning * Lasting support and shock absorption that improves your athletic performance and prolongs the life of your shoes * Ideal for running walking training and sports * Unconditionally guaranteed for one full year