The Ergo-Fit carbon toe on the Georgia Boot Men's Carbon Flex Wedge 6" Carbon Toe Work Boots is ergonomically designed to match the natural contours of your feet, meeting ASTM F2413 standards for protective toe and electrical hazard protection. A fiberglass shank and Counter Lock system add support, while the co-molded TPU/PU outsole resists heat, abrasion, and slips.