Description: Rocky Grindstone XTR Composite Toe Work Boots feature full-grain leather, flex welt construction, and oil/slip/barnyard acid & chemical resistance. Technologies: ASTM F2413 protective toe classification ASTM F2413 Electrical Hazard Standard 11 Inches in height Waterproof Full Grain Leather Rocky® Air-Port Lite® Sponge PU Footbed with Memory Foam Guaranteed Rocky® Recycled Waterproof Construction Flex Welt Construction Oil, Slip, Barnyard Acid, and Chemical-Resisting PU Outsole