Smooth full-grain leather upper Waterproof and breathable CTX hightech lining that protects the foot with a porous mesh structure against waterlogging Slip, oil and heat resistant to 572 degrees rubber outsole Evercushion footbed; Lateral YKK zipper with gusset with TPU heel support and kick-off in the heel area Waterproof Composite toe and ASTM F2413-24 I/C EH SR compliant