Wolverine Durashocks cushion insoles utilize space age technology for superior comfort and shock absorption. The unique cushioning material is positioned in the critical heel strike area. The insole is contoured to the shape of the foor using soft, flexible polyurethane foam for added comfort. Durashock insoles are covered with a durable fabric which draws moisture away fro the foot. NOTE: These insoles are designed as replacement insoles for Wolverine Durashocks footwear only and may be too thick to wear in conventional footwear.