Men's Carhartt FT6000 Ironwood 6" Waterproof Soft Toe Work Boots Every detail that goes into an Ironwood work boot is focused on keeping you at your top performance. Equipped with a high-traction rubber outsole designed with 90 degree heel for extra grip and stability. Lightweight polyurethane midsole and Insite® Technology Footbeds absorb and return energy with each step to keep you moving with comfort. Durable leather upper features breathable Storm Defender® waterproof protection and sweat wicking FastDry® linings. Kick these boots off at the end of a tough day with the heel-kicker utility ledge and see how fresh your feet feel.