Waterproof full-grain leather upper. Permanent direct-attach molding seals out water. Patented, long-lasting Dri-lex lining wicks away sweat and keeps skin dry and comfortable. Removable full-cushion dual-density polymer footbed. Tough, lightweight polyurethane midsole. Fiberglass shank stabilizes foot, weighs 75% less than steel and reduces fatigue. Vibram Rubber outsole maximizes traction and performance. Steel toe rated ASTM F2413-05 F I/75 C/75 EH.