The Danner Crag Rat Men's Hiking Boot isn't at home until it's miles from anywhere, marching through mud, rallying over rocks, or stomping through snow. The whole package is built on top of a deep lugged Vibram Tsavo outsole, which is designed to grip all sorts of rugged terrain, giving you the confidence to take the Crag Rat almost anywhere. On top of the sole, you'll find a PU footbed and molded PU midsole that, along with the stiff nylon shank, provide plenty of support and protection against the sharp rocks and tough terrain that are the Crag Rat's preferred environments. The Crag Rat is also built with a PU and Pebax Dynamic Response stability system, which provides increased stiffness, lateral stability, and energy return, so you can cover more ground with less pain and effort. Finally, the supple but rugged full grain leather upper is lined with a waterproof and breathable Gore Tex membrane, which keeps your foot dry when you're marching through rainy, muddy, or snowy conditions on the way to your next campsite.