Its timeless 6” profile is crafted in unlined Bourbon Brown leather for a naturally cool feel and features 4-row stitching for enhanced durability plus an orthotic insole for comfort. Designed for high-heat applications like welding and steel fabrication, its heat-resisting Vibram Street Warrior outsole is built to endure with abrasion-, oil- and slip-resisting technology. This boot meets ASTM 2413 safety footwear standards. ASTM F2413 covers the minimum design, performance, testing, labeling, and classification requirements for footwear designed to protect against a variety of workplace hazards that can potentially result in injury.