Welder-tough construction. Comfortable and supportive. The RF5005 Fuse is a welding boot designed to withstand the most demanding industrial environments. Engineered for maximum protection, the Fuse features a 100% non-metallic construction. The breathable mesh lining, made from recycled polyester, keeps your feet cool and dry, while the fibreglass safety toe provides a shield against falling objects without weighing you down. The exclusive penetration resistant protective insert, developed by Activ-Step® helps protect your feet and provides essential on-the-job safety, further minimising the weight. Our IMPACTSHIELD™ Metatarsal Guard, a non-metallic internal metatarsal protection, ensures flexibility while protecting the delicate metatarsal bones from an impact of 20kg falling from a height of 50 cm, equivalent to 100 joules of force. The durable materials used, including FORCE10® components, flame-resistant leather and R-TEN™ stitching, ensure exceptional resistance to molten sparks and other welding hazards. Inside the boots, the Activ-Step® Cushion Max footbed, features our latest bio-based natural rubber composition, certified by the USDA BioPreferred Program. Experience the Fuse and discover the difference. Durable Upper Materials: Flame retardant full grain leather. Thread: R-TEN™ Flame Resistant. Activ-Step® Cushion Max Footbed: Superior shock absorption properties. Made from 73% natural rubber and 100% recycled post-consumer polyester sock-liner, certified by the USDA BioPreferred® Program. Advanced Protection: A fibreglass protective toecap and penetration resistant protective insert provide essential on-the-job safety. Internal Metatarsal Protection: Incorporating our IMPACTSHIELD™ Metatarsal Guard non-metallic internal metatarsal protection. Tough Solid Nitrile Rubber outsole: Our FORCE10® outsole provides maximum protection in the toughest conditions.