Built to last with durable full-grain leather - Lightweight and strong Performance Denier Polyester - Easy on/off YKK side zipper - Actively pulls moisture away from the foot with moisture-wicking lining - Built to last with toe and heel outsole stitch - Form-fitting and breathable removable PU insert - Energy returning lightweight CMEVA midsole - Made with a modified last for better foot position - Better ground connection with 11mm heel to toe drop - Athletic Strobel construction - ASTM F2413-18 rated composite toe - Ground-gripping TacTRACTION rubber outsole - Full movement flexibility with outsole flex channels - Outsole exceeds industry standards for slip-resistant and oil-resistant - Lighter than ever weighing only 20 oz. per half pair - ASTM F2413-18 M I/75 C/75 EH - ASTM F2913 whole shoe slip