The Rocky Rams Horn Waterproof Pull-On Work Boot is a tough, oil and slip resistant rubber outsole boot with a fiberglass shank, rebound cushioning midsole, and EnergyBed LX insoles for comfort, safety, and durability. It complies with ASTM F2892 electrical hazard classification and keeps feet cool and dry. Available in Medium and Wide widths Light and flexible cement construction Fiberglass shank 11 Inches in height ASTM F2892 electrical hazard standard Flexible Direct Attached PU Midsole EnergyBed LX Footbed with Memory Foam Waterproof Full Grain Leather Oil & Slip Resisting Rubber Outsole 1 Year Vapor Pass Breathable Recycled Membrane Waterproofing 1 1/4" Heel Height 14.5" Calf Circumference Men's Rocky Rams Horn Waterproof Pull-On Work Boot - Crazy Horse