Safety First. Always. The Rock Fall RF5000 Spark is a specialist welding boot engineered for extreme protection in demanding welding, grinding, and hot work environments within industries like metal fabrication, construction, and heavy engineering. This upper design prioritises safety and durability offering exceptional resistance to heat, sparks, and molten metal splash. Constructed from hard-wearing, flame-retardant leather with R-Ten® stitching, which is resistant to intense heat and does not melt. This enhances the boot's overall heat and flame resistance, especially in critical areas like seams that could be vulnerable to heat damage. A hook & loop quick-release vamp allows for rapid removal in emergency situations. The boot features a lightweight, fibreglass toecap and penetration resistant protective insert for robust impact and underfoot penetration protection – both exclusively crafted by Activ-Step®. The durable nitrile rubber outsole provides excellent grip, abrasion resistance and heat resistance up to 300°C, while also resisting oils and acids. And for extra comfort underfoot, our shock-absorbing, anti-fatigue footbed provides all-day comfort. The RF5000 Spark is designed to provide welders and other professionals working in hazardous hot work environments with the confidence and protection they need to perform their tasks safely and efficiently. Durable Leather Upper: Flame-retardant leather with quick release design. FR Kevlar® Stitching: High heat-resistant stitching, resists melting and does not readily support combustion. Activ-Step® Cushion Pro Footbed: Superior shock absorption properties. Advanced Toe Protection: A fibreglass protective toecap ensures safety without added weight. Advanced Penetration Resistant Performance: The protective insert guards against underfoot injury. Tough Nitrile Rubber outsole: Provides superior traction with maximum protection in the toughest conditions.