ANSI/ASTM I75 and C75 Approved. Men's Thorogood 6'' Internal Metguard Work Boot. Patented Flexible I-MET Technology. Waterproof Tumbled Oiled Leather Upper. Thoro>dri Waterproof Bootie Construction. High Abrasion Nylex Lining. Removable Full Length Polyurethane Footbed. Rubber Midsole. Composite Shank. Goodyear Storm Welt Construction. Flexible, Non-Metallic Puncture Resistant Insole. Slip, Oil, Heat, Abrasion Resistant Rubber Chevron Outsole. Tested for and Meets CAN/CSA-Z195 18,000 Volts Electric Shock Resistance Standard. Electrical Hazard Rated. Anti-Roll Bar Heel Support (ABHS).