Be prepared to move with confidence in any direction, on any surface, with the rugged lug, dual-density Z-Trac outsole in these black leather and performance air mesh nylon side zip boots. The BBP Waterproof barrier protects you from dangerous fluids, too. Composite shank gives your arches extra reinforcement. And a removable polyurethane SHOCK ZONE insole means you can save the day without harming your feet.