Asymmetrical composite safety toe, Electric hazard protection Lightweight Hover Spring foam midsole provides industry leading underfoot comfort, flexibility and durability Anti-Fatigue Technology polyurethane footbed for shock absorption and energy return, Mark II Oily wet #3 on American Olean tile at >.40 Microban technology provides an extra layer of protection on footwear fabrics to help against unpleasant odors, stains, and deterioration Premium full-grain waterproof leather with a waterproof membrane, Superior indoor/outdoor traction and slip resistance from Timberland PRO Rubber convex outsole design