Georgia waterproof system Oil and slip-resistant outsole ASTM F2413 protective toe classification ASTM F2413 electrical hazard standard 1 1/4 Inch heel Abrasion-resistant outsole Heat-resistant Steel shank for added arch support Direct attached oil-resistant PVC outsole TDC (Technology Driven Comfort) polyurethane insole 11 Inches in height Shaft height and circumference may vary by size 16-inch calf circumference Weight: 4.4 pounds per pair for a size 10 Chemical resistant outsole GEORGIA BOOT Men's Homeland Steel Toe Waterproof 11 Inch G111