These composite toe, full grain leather boots are designed with a removable polyurethane cushioned insole and a steel shank. They feature Goodyear™ welt construction, a Vibram® Alpha+ rubber outsole, and a Dri-Lex® ZigZag lining.The FlexMet internal metatarsal guard combines a firm, flexible nylon and plastic molded guard with a molded polyurethane cushion beneath the guard. The guard has serrations for increased flexibility. The cushion absorbs the shock of impact and provides a soft cushion when flexing.Note: This footwear is designed to provide secondary protection from incidental contact with live electrical circuits. It meets F2413-11 Section 5.5 requirements and is tested to resist the application of 18,000 volts at 60 Hz for 1 minute with no current flow in excess of 1 milliampere under dry conditions. It should not be worn in explosive or hazardous areas where conductive footwear is required.