These black, casual men's boots are resistant to electric shocks, slips, punctures, and oil. The boots are made of full-grain leather, rubber, and synthetic material with an Ortholite(R) footbed, a Transpor(R) dry layer, and an aluminum toe material. These boots also feature a lightweight polyurethane midsole and composite shank. This size 10 pair has four inches in height with a lace-up closure and includes a Hex-Weave perforated liner. These boots are CSA-approved Grade 1 standard.