Work hard without limits in the Carhartt Rugged Flex work boot that is built with Carstrong durable reinforced fabric and leather for durability. This 6-inch steel-toe boot has a FastDry lining that wicks away moisture, and a slip-resistant Rugged Flex outsole for consistent underfoot comfort. It meets Astm 2413-18 and Astm F2413-18 EH standards, offering secondary protection against incidental contact with electrical circuits of 18,000 volts. Click here for Boot Measuring Guide.