What Our Gearhead® Experts Are Saying:"When it’s bitter cold at altitude, this parka is my armor. The 900-fill DRY DOWN traps incredible warmth without feeling bulky, and the Pertex Quantum Pro shell shrugs off wind and snow. I’ve relied on it during frigid bivvies and storm-bound ridge waits—it’s a true expedition piece."When we’re deep in the alpine and the mercury plunges, the Mammut Eiger Nordwand Pro Down IN Hooded Parka is our ultimate defense against the cold. Built with 900-fill-power DRY DOWN, it delivers unmatched loft and insulation while maintaining compressibility for easy stowing in the pack. The Pertex Quantum Pro recycled nylon ripstop shell is soft yet resilient, providing water resistance and breathability even in wet, heavy snow. Pertex Diamond Fuse technology boosts abrasion resistance, so it stands up to icy rock and pack straps alike. Strategic G-LOFT ECO EVOX synthetic insulation is placed in high-moisture areas to ensure dependable warmth, even if conditions turn damp. With a relaxed fit for layering and PFC-free DWR for added weather protection, this parka is purpose-built for the harshest expeditions.