High-altitude climbing, technical climbing, hiking and mountaineering Main fabric: 93% nylon, 4% aramid, 3% polyester; Accent fabric: nylon (without PU membrane) Lining: Nylon Derived from extreme high-altitude climbing equipment at altitudes of 8,000 meters, with a superior protection system and extreme temperature-locking insulation technology, always safeguarding climbers. FILTER-TEC technical fabric—windproof, waterproof, and breathable. 800FP hydrophobic goose down, with a 95% down content, providing durable and efficient warmth in extreme cold. The CoreHeat body core temperature retention protection system equipped with graphene thermal reflection technology, offering warmth protection for the heart area. Moisture-wicking mesh structure on the inner back, dynamically absorbing sweat.Key parts such as the front chest, shoulders, elbows, and lower hem are reinforced for wear resistance, withstanding wear and tear during intense activities. Built-in RECCO® avalanche rescue system ensures your safety for mountain exploration. 3D adjustable hood compatible with helmets, fully shielding wind and snow. Comes with a compression bag, making the garment easy to compress and pack, enhancing portability. Filling: 800FP hydrophobic goose down (95% down content) Fit: Regular fit