The Ergo-Fit alloy toe cap on the Georgia Boot Men's Carbo-Tec FLX 11" Alloy Toe Pull On Work Boots is ergonomically designed to give your toes a better range of motion, meeting ASTM F2413 classification. The Carbo-Tec outsole is oil- and slip-resistant with great abrasion, chemical, and heat resistant properties, attached through flexible cement construction with an extra-wide fiberglass Shovel Shank XL.