Stable. Reliable. Waterproof. The Radical 452 GTX boot is as light as it is tough. Built with sanded top-grain Nubuck leather, the velvety upper is extremely durable, with a shorter and more comfortable break-in period. While internal and external support structures, via Danner’s patented Terra Force technology, deliver unparalleled stability and responsiveness without the weight of traditional platforms, a supportive midsole and sturdy footplate provide comfort. The waterproof, breathable Gore-Tex liner keeps feet dry while allowing heat and sweat to breathe out of the boot. And the Danner Boulder outsole features multi-directional center lugs and traditional outer lugs, creating a failsafe pattern that gets you comfortably and safely to your destination–wherever that may be.