Design: A timeless blend of classic style and modern comfort - the #2440 is designed with character. Premium water-resistant leather Leather and synthetic lining Contoured EVA footbed with XRD(R) Technology for maximum comfort TPU Classic #550 outsole with XRD heel insert Polyurethane midsole Double stitching on the upper for extra strength XRD(R) in the heel for supreme shock absorption Steel shank Additional Details: Classic design inspired by the iconic design of the Original #500 series, with added comfort features Reinforced stitching around the heel and gusset balances comfort and durability. An extra set of removable, multi-fit Cambrelle(R) footbeds.