Full-grain leather and tough 1000-denier Cordura® nylon. Breathable GORE-TEX® waterproof membrane lining. 1200-gram Thinsulate™ Ultra Insulation adds exceptional warmth. Removable full-cushion footbed. Rubber/polyurethane lug outsole. Classic Goodyear welt construction is sturdy and flexible. Steel toe rated ASTM F2413-05 M I/75 C/75 EH.