This non-metallic boot meets ASTM F2892 electrical hazard standards for soft toe footwear. The Georgia Boot Men's Carbo-Tec FLX 11" Pull-On Work Boots attach the dual-density EVA midsole, double-wide fiberglass Shovel Shank XL, and Carbo-Tec rubber outsole to the upper through flexible bond welt construction for heat, chemical, abrasion, and slip resistance.