100% waterproof and breathable GORE-TEX liner is engineered to keep your feet dry and comfortable - even in extreme conditions. Rugged hardware for secure fit and long lasting performance. Triple stitched for uncompromising fit and superior protection. Cushioning Fatigue Fighter footbed with memory foam insert. Strength and stability of Danner's hand-crafted stitch down construction. Rigidity from a steel shank. Superior traction and debris release from an exclusive oil- and slip-resistant Vibram Quarry outsole. Alloy toe meets or exceeds ASTM F2413-11 M I/75 C/75 EH standards. Electrical hazard (EH) footwear is manufactured with non-conductive electrical shock resistant soles and heels.