Its timeless 6� profile is crafted in unlined Pecan Brown leather for a naturally cool feel and features 4-row stitching for enhanced durability plus an orthotic insole for comfort. The Vibram® Alpha Plus TC4+ outsole is specially designed for high-heat applications like steel fabrication and welding and is also abrasion-resisting, slip-resisting and oil-resisting. This boot meets ASTM 2892 safety footwear standards.