From the outset, our Granite boots were engineered to withstand the serious abuse sheep hunters put their boots through. It's not uncommon for a professional guide to cover thousands of miles and millions of vertical feet with their Granite's. The upper is constructed from 2.8mm top grain Yukon leather, making for a supremely durable boot. Underneath is our Flex-3 chassis for ample support over the most extreme terrain. On the bottom, the Granite has been strategically outfitted with our exclusive custom rubber Rubber Outsole. This outsole will stay softer and grip better when the temps drop, while still maintaining durability and long life span. Finally, the Granite has been finished off with articulated roller-bearing hardware and a heavy duty rubber rand.