Flexible, lightweight, and 100% waterproof, the Muckmaster work boot is the ultimate in foul-weather footwear. Stretch-fit topline binding keeps warmth in and cold out. Each 5mm CR flex-foam bootie features 4-way stretch nylon; a 2mm thermal foam instep underlay; an EVA molded midsole with contoured footbed; and an extended rubber overlay for added protection. MS-1 molded outsole is rugged, aggressive, and durable for maximum protection and stability. Additional Achilles overlay and wrap-up toe bumper provide extra protection. Height: 16".