These Thorogood men's I-MET2 safety boots are built with supreme craftsmanship and expertise. Black walnut full grain oil-tanned leather upper with removable polyurethane footbed on top of a Poron 4000 comfort cushion insole, rubber green stripe midsole and heat resisting Vibram ALPHA+ outsole. Forest green Dri-Lex lining. Special Features: ASTM F2413-11 M I/75/C/75/Mt/75 steel toe, EH rated. Tested for and meets CAN/CSA-Z195 18,000 volts electrical shock resistance standard. Patented I-MET2 technology. Reinforce stitch ''Ball to Ball'' on outsole.