Men。PRODUCT DETAIL KEEN.DRY waterproof system Electrical hazard (EH) / Electric Shock Resistant (ESR) that meets ASTM F2412-18 and F2413-18 F I/75 C/75 EH standardsstandards Full grain leather upper that helps resist the damaging effects of oleic acid, urea, sodium chloride, and ammonium hydroxide Lace-up closure for a custom and secure fit Rounded carbon fiber toe Removable, dual-density PolyAer PU insole for all day comfort KEEN Luftcell: Air-infused, PU midsole for weightless comfort Oil- and slip-resistant non-marking rubber outsole that meets ASTM F2913-17 SATRA Non-Slip Testing Standards Cleansport NXT Technology for natural odor protection KEEN® branding details