An all-mountain boot designed to take riders further into winter conditions, insulated with a fleece lining for extra warmth and both breathable and waterproof thanks to an advanced Gore-Tex membrane. The Terra Nanuq Gtx is designed for off-road winter riding in all weathers. Fully insulated, waterproof and breathable, the high-performance all-terrain boot is ready for extreme climates and protects you from the harshest weather, whether you're tackling snowy technical trails or epic, icy gravel adventures. Gore-Tex Koala membrane: insulated, waterproof and breathable, Gore-Tex's Koala membrane keeps you warm and dry in tough winter riding conditions. Fleece lining: soft brushed fleece lining provides insulation and comfort on the coldest winter rides. All-day comfort: generous fit and easy adjustments thanks to a practical single-dial boa-fit system and a zip ankle cuff. X2 Outsole: Vibram Xs Trek Evo for traction on and off the bike. Intended use: trail, all-mountain.