100% Non-Metallic, with protective toecap and midsole, Ohm is an electrical hazard boot developed with specialist comfort materials that are certified to withstand electrical risks of 18kV, including Boa lacing system, shock absorbing dual density EVA nitrile rubber outsole and Activ-Step Ortholite Climate breathable footbed. EN ISO 20345:2011 SB P E FO WRU SRC + ASTM F 2413-11 I/75 C/75 EH PR