This rugged work boot will keep you safe on the job site while still keeping your own personal sense of style ASTM F2413 electrical hazard standard Heat, chemical, abrasion, and slip-resisting dual-density EVA and Carbo-Tec rubber outsole SPR leather upper protects against caustic alkali, sulfuric acid, calcium hydroxide, potassium phosphate and caustic potash Fiberglass shank Heel stabilizing counter lock prevents heel slippage for a comfortable, secure fit Quick Response Polyurethane foam removable insole Cement construction Georgia Boot Men's 11 Inch Carbo-Tec WP