Adaptable arch allows foot to react to natural movements Gel pads provide shock absorption for supreme comfort Polyurethane cushioning layer Ergonomically designed to provide comfort from heel to toe Designed to fit most SFC footwear Absorb the impact of the daily grind and enhance the long-lasting comfort of your Shoes For Crews with these dual-density gel insoles. Ergonomically designed to provide comfort from heel to toe, these padded gel inserts offer superior cushioning and shock absorption.