SUSTAINBLE: TOTAL RECYCLED PLASTIC USE IS 82.5G = Total of 5 Plastic Bottles PER PAIR, 100% Recycled non-wicking abrasion resistant laces, 100% Recycled tongue and collar lining mesh, and 100% recycled polyester upper textiles - yarns verified by The Global Recycling Standard. Upper: Water repellent full grain black leather Protective: Protective fibreglass toecap and composite anti-penetration flexi-midsole Lining: Activ-Tex® waterproof and breathable bootie membrane - tested for 8 hours (5 times longer than EN requirement) Outsole: Dual density PU nitrile rubber outsole - tested to extraordinary abrasion, heat and cold performance levels Footbed: Activ-Step® PU anti-fatigue comfort footbed Electrical Hazard footwear, oil resistant, protective midsole and toecap. Cold insulation, water repellent upper with waterproof membrane and a heat resistant outsolde to 300°C. SRC slip rated with ladder grip. 100% metal free. Ideal for engineering, utilities, highways, offshore, rail, security, construction, aiport, logisitics and freight, and electric/hybrid vehicles power and transmission. Conforms to EN ISO 20345:2011 SB P E WRU FO CI HRO WR SRC + ASTM F 2413-18 M/I/C EH PR Disclaimer: This footwear is Electrical Hazard and tested in accordance with the test method as set out within ASTM F2412-18. This protection deteriorates rapidly in humid, damp and wet environments and with wear. Electrical Hazard (EH) Safety footwear is intended as secondary source protection equipment.