As treeline drops away and solid footing becomes rare, trust between you and your boots is critical. The Crag Rat USA is built to live up to the demands of the high-alpine trail. Constructed in our Portland, Ore. factory, it's designed for heavy hiking, backpacking and light mountaineering. Using premium components like GORE-TEX and Vibram, you can be confident it will perform when you're way out. The Crag Rat USA incorporates a waterproof, breathable lining, full rubber rand and our Dynamic Response System to create an adaptive platform you can rely on every step of the way, no matter the weather or the footing.