Oil- and slip-resistant polyurethane outsole. AMP (Advanced Memory Polyurethane) insole. Double-ribbed, tempered steel shank. Cushion EVA midsole. Full grain SPR leather upper. 3 Inches in height. ASTM F2892 electrical hazard standard. High performance mesh lining. Weight: 2.1 pounds per pair for a size 10. Twin gore panels for great fit. Goodyear welt construction. Oil-resistant rubber rand.