These Roughhouse Mountain GTX Hiking Boots by Danner were designed for rugged protection while still being mindful about added boot weight. Ready to tackle the roughest backpacking conditions, these boots are made of a combination of nubuc leather and suede. They are 100% waterproof with a breathable GORE-TEX liner with 400 grams of Thinsulate Ultra insulation. The cushioning PU foot bed, reinforced tow box, abrasion resistant toe and heel cap, molded rubber heel counter, and Terra Force X2 platform all work together to provide a stable secure platform with all day comfort. The Defiance outsole is crafted for traction over rugged terrain.