These are Electrical Hazard Class 3 chainsaw boots that are certified to withstand chain speeds of 63mph in accordance with BS EN 17249:2013. They the ultimate equipment for the harshest environments in all weather conditions thanks to the Moisture-tech by Sympatex waterproof membrane. Certified to withstand electrical risks of 18kV in accordance with the ASTM F2412-18 test method. Suitable for the agricultural, construction and engineering industries and rail workers. Ideal for electric vehicles, hybrid power and transmission work and utilities.