What Our Gearhead(R) Experts Are Saying:"I've worn this jacket on technical ascents where weight and weather protection both mattered. The GORE-TEX Pro 3-layer fabric is bomber against wind and wet snow, yet breathable enough when I'm working hard on steep climbs. Its minimalist build packs down small, and the water-resistant zippers keep my layers dry without adding bulk."When we're deep in the alpine, the Mammut Eiger Nordwand Advanced HS Hooded Jacket is our shield against brutal mountain weather. Built with GORE-TEX Pro 3-layer fabric, this jacket delivers uncompromising waterproofing and breathability, letting us push toward the summit in confidence. Its recycled nylon face and PFC-free water repellent treatment prove that sustainability can coexist with technical performance. The lightweight build keeps our pack weight down, while the solution-dyed backer saves water during production-another nod to its eco-conscious design. Minimalist features streamline movement on rock, ice, and snow, and the two-way AquaGuard zipper keeps the elements out while giving us easy access to harness tie-ins. Whether we're facing freezing wind or driving sleet, this jacket keeps our focus where it belongs-on the climb.