If you are bold enough to climb 40 feet off the ground, or dance around high-voltage lines, you need boots that support you in the stir-ups, handle extreme weather, stabilize you when fatigued, and embolden you to keep reaching where others won&';t. With an composite safety toe that meets or exceeds the ASTM F2412-18 safety standard. Specifications Lineman patch Shaft Height - 10" Shank - 12 iron oak-tanned leather lineman shank + steel shank Uppers - Smooth 8oz premium oil-tanned leather Lowers - Roughout 8oz premium oil-tanned leather Thread - high strength, TechnoraA(R) fire resistant over 900 AdegF Hardware - traditional brass high quality eyelets and speed hook combo Insole - Genuine oak tanned leather Midsole - Genuine oak tanned leather Safety Toe - Tested to compliance with ASTM-F2412-18/ASTM-F2413-17 a ASTM-F2412-11/ASTM-F2413-17 safety standards Arch support - leather Sole - Vibram RedX Origin - Handmade in the USA (The ASTM-F2413-17 rating reflects the same safety testing and rating as the ASTM-F2413-18 of which the key modification is to the inner tongue label for better identification purposes.)