This steel toe work boot features the Georgia Waterproof system, brass hardware, a steel shank, a TDC (Technology Driven Comfort) polyurethane footbed, and a direct attached oil-resistant PVC outsole. It has an ASTM F2413 I/75 C/75 Protective Toe Classification and is compliant with ASTM F2413 Electrical Hazard standards. California Prop 65 Warning: