Spenco® PolySorb® Walker/Runner For walking, running and jogging. Special “heel strike” cushioning delivers optimum shock absorption for repetitive rear foot impact. The Polysorb Walker Runner Insoles offer energy return for the heel strike and forefoot areas while delivering moderate arch support. Best for replacement insoles on all athletic and training shoes with removable sock liners. Seven sizes fit youth, men’s 6-15, women’s 3-10. #38-323

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