New age construction combines with high-quality materials to deliver a boot with maximum durability, great fit, and incredible flexibility at a feather-light weight for peak performance. Oil-drilled, full-grain leather prevents upper from drying out and offers easy break-in. Full-cushion removable air cell PU insole with anti-microbial mesh sock liner offers impact absorption and odor control. Wave mesh lining. TPU midsole with PU anti-fatigue pads is lightweight and counter sunk to provide extra cushioning. Patented PU outsole creates a strong bond for extra durability. Goodyear welt construction. Fiberglass shank. Special EH construction helps protect the wearer from electrical current on dry surfaces (rated ASTM F2413-05 I/75 C/75 EH). Imported.