Waterproof, full grain leather upper. Moisture wicking mesh lining with breathable, waterproof membrane. 400g Thinsulate Ultra insulation. Removable EPX anti-fatigue footbed. Advanced comfort PU midsole. Puncture resistant steel plate. Direct attached rubber outsole, heat resistant up to 932 degrees farenheit. Comp toe. EH. PR. WP/Insulated. ASTM F2413-18 M/ I/ C EH PR compliant.