SPR Leather. Georgia waterproof system. Square toe. Cushion comfort PU removable insole. Cushion EVA midsole. Fiberglass shank. Abrasion-resistant outsole. Heel-stabilizing Counter Lock. 11 Inches in height. Shaft height and circumference may vary by size. 15 inch calf circumference. ASTM F2892 electrical hazard standard. High performance mesh lining. Weight: 2.3 pounds per pair for a size 10. Slip and oil resistant, dual density and abrasion resistant rubber outsole. Goodyear welt construction. Chemical resistant outsole.