Description Rock Fall RF910 Surge Waterproof Electrical Hazard Safety Boot 100% non-metallic, with protective toecap and midsole, Surge electrical safety boot is developed with specialist durability materials that are certified to withstand electrical risks of 18kV in accordance with the ASTM F2412-18 test method, including FORCE10® components, an Activ-Tex® waterproof membrane and Activ-Step® PU anti fatigue comfort footbed. Unsure what safety footwear you need for your work or industry. We can help, click here… Unsure what the Safety and Slip Rating Codes (SB, S1P, SRC etc.) We can help, click here… Features EN ISO 20345:2011 SB P E WRU FO CI HRO WR SRC ASTM F 2413-18 M/I/C EH PR Protective fibreglass toe cap Composite anti penetration flexi-midsole Activ-Tex waterproof and breathable bootie membrane – tested for 8 hours (5 times longer than EN requirement) Dual density PU nitrile rubber outsole Outsole tested to extraordinary abrasion, heat and cold performance levels Anti fatigue PU footbed 100% recycled non-wicking abrasion resistant laces Electrical hazard Materials Upper: Water repellent full grain leather and 100% recycled polyester