Georgia Mens 6" Boot Blue Collar Composite Toe Waterproof Work Hiker-GB00108 Full-grain leather upper, Nylon Rubber sole Full-grain leather upper. Georgia waterproof system. EVA midsole.Nylon shank . High performance mesh lining Light and flexible cement construction. Oil- and slip-resistant rubber outsole. Metal Hardware ASTM F2413 Composite protective toe, Electonic Hazard classification-Ligher than steel toe, same impacr resistance Abrasion-resistant heel. Molded TPU toe guard. TDC (Technology Driven Comfort) polyurethane insole Ergo-Fit safety toe designed to match contours of feet, providing superior comfort and flexibility