Description Waterproof leather upper. Breathable and moisture wicking lining. 200 grams Thermolite insulation. Timberland PRO 24/7 comfort system to reduce foot fatigue. Seam-sealed waterproof construction. PU midsole. Oil and slip resistant Thermoplastic Urethane (TPU) outsole with MaxTRAX tread for superior slip resistance. Direct attached construction. Steel toe. EH. Waterproof. Insulated. ASTM F2413-18 M/ I/ C EH compliant.