Built with durability, comfort, and superior protection in mind, the Grindstone XTR is your go-to footwear for demanding environments, ensuring you stay safe and comfortable from dawn till dusk. This 6" BOA is crafted from premium waterproof full grain leather and our Guaranteed Rocky® Recycled Waterproof Construction keeping your feet dry in wet and muddy conditions, while flex welt construction ensures long-lasting performance. This boot features an Oil, Slip, Barnyard Acid, and Chemical Resisting PU Outsole providing traction you can trust while navigating slick floors or uneven ground. Inside, the Grindstone XTR boasts our Rocky® Air-Port Lite® Sponge PU Footbed with Memory Foam. This advanced insole technology delivers superior cushioning and support, reducing foot fatigue and keeping you energized throughout your workday. Dial in your perfect fit for custom comfort that’s consistent all-day, the micro-adjustable BOA Fit System is fast, easy, and built to perform so you can always get the job done. This safety toe work boot meets ASTM F2413 protective toe classification and electrical hazard standard. 6 Inches in height ASTM F2413 electrical hazard standard ASTM F2413 protective toe classification BOA® Fit system Flex Welt Construction Guaranteed Rocky® Recycled Waterproof Construction Oil, Slip, Barnyard Acid, and Chemical-Resisting PU Outsole Rocky® Air-Port Lite® Sponge PU Footbed with Memory Foam Waterproof Full Grain Leather