Amazon.com: Lehigh Safety Shoes Steel Toe Work Boot, Brown 。***RUNS BIG, LISTED AS A SIZE 6M BUT FITS A SIZE 9M FOOT. *** Lehigh Safety Shoes: 6\" Lehigh Steel Toe Work Boot One of the sturdiest Lehigh shoes through the years has been Lehigh 6\'\'. It has an extremely rugged rubber outsole that has excellent heat and chip resistance. As a further addition, Lehigh work boot also complies with ASTM F2413-05 Electrical Hazard standards. This type of work boot is made with insulating bottoms providing secondary electrical hazard protection to those areas dealing with open circuits under dry conditions, but also can be worn in work areas requiring only basic protective toe work boots. Full-grain leather Steel shank Welt construction ASTM F2413 protective toe classification ASTM F2413 electrical hazard standard Rubber outsole with Molded EVA midsole Full Wrapped Foam Cushion Insole Work LOCKRIM® Steel Toe Cap Workshoe Last Weight: 4.0 pounds per pair for a size 10