Conforms to EN ISO 20345:2011 SB P CI E FO WRU WR SRC + ASTM F 2413-18 M/I/C EH PR + AS/NZS 2210.3.2009 SB P CI E FO WRU HRO WR SRC. Independently tested to IEC 61482-1-1:2019. 100% non-metallic, with protective toecap and midsole, Arc is an electrical hazard linesworker boot developed with specialist durability materials that are certified to withstand electrical risks of 18kV in accordance with the ASTM F2412-18 test method. Arc has also been independently put through IEC 61482-1-1:2019 test method. Including fire resistant laces, FORCE10® components, Helcor® abrasion resistant leather, Moisture-tech by Sympatex® waterproof membrane, IMPACT SHIELD™, R-TEN™ thread and Ortholite® climate breathable footbed. The sole and upper are also compatible with most common climbing irons. Water repellent full grain black leather with Helcor abrasion resistant leather stitched with R-TEN™ abrasion resistant thread and enhanced flame-resistant laces. Protective fibreglass toecap and composite anti-penetration flexi-midsole. Moisture-tech by Sympatex® waterproof and breathable bootie membrane – tested for 100 hours (74 times longer than EN requirement) with full grain leather lining. FORCE10® scuff cap and dual density PU nitrile rubber outsole – tested to extraordinary abrasion, heat and cold performance levels. Ortholite® climate breathable footbed with IMPACT SHIELD™ shock reducing internal digging plate.