The Arctic Pro Steel Toe Insulated Boot from MuckA(R) is constructed with an 8mm neoprene bootie and fleece lining to provide all-day comfort and warmth in low temperatures. Like most Muck boots, a topline binding keeps the snow and cold out and the warmth in. With the Arctic Pro, you can stay focused and productive, no matter how relentless Mother Nature becomes. Conquer the cold and stay safe on the job with the Arctic Pro Steel Toe Insulated Work Boot - where rugged durability meets uncompromising comfort. 100% waterproof 8mm neoprene bootie Warm fleece lining Steel safety toe 2mm thermal foam underfoot EVA midsole for added comfort MS1 molded outsole Steel shank Bob-tracker molded outsole ASTM F2413-11 M I/75 C/75 EH Topline binding keeps snow out Order today!