Rugged pigskin upper. 200-gram Thinsulate™ Insulation adds warmth. Permanent direct-attach molding seals out water. Tough Cambrelle® lining absorbs moisture. Removable double density footbed adds cushioning and stability. Fiberglass shank stabilizes foot, weighs 75% less than steel and reduces fatigue. Steel toe rated ASTM F2413-05 M I/75 C/75 EH.