Spenco® PolySorb® Walker Runner Replacement Insoles are proven to deliver the best combination of shock absorption and energy return* during any athletic activity. Spenco® Walker/Runner Style Insoles are made of closed-cell nitrogen-injected Spenco® material and is laminated over a specially contoured, lightweight polyurethane base to provide outstanding cushioning and foot stability. Special cushioning in both the heel strike zone and the forefoot area for outstanding performance. If you work on concrete floors you will love the Spenco® PolySorb® Walker Runner Replacement Insoles. Just take the insoles that came in your shoe and replace them with Spenco® PolySorb® Walker Runner Replacemant Insole. Spenco® PolySorb®  Walker Runner are washable and can often hold up through more then one pair of shoes. Polysorb® Walker Runner insoles from Spenco® are not just arch supports but they are contoured with a heel cup and arch for extra comfort! They make for excellent replacement insoles for athletic shoes, work boots and even most casual shoes. Awarded the Seal of Acceptance by the American Podiatric Medical Association. Unconditionally guaranteed one full year.Spenco® Walker/Runner Style works great for walking, running and jogging. Special heel strike cushioning delivers optimum shock absorption for repetitive rear foot impact. Seven sizes fit youth, men's 6-15, women's 3-10.