Thermoplastic Polyurethane sole Waterproof nubuck leather upper Timberland PRO 24/7 comfort system to reduce foot fatigue Oil and slip resistant Thermoplastic Urethane (TPU) outsole with MaxTRAX tread for superior slip resistance Steel toe ASTM F2413-18 M/ I/ C EH compliant Timberland PRO 6IN Direct Attach Men's, Steel Toe, EH, MaxTrax Slip Resistant,