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When we're stamping our feet to stay warm while we're belaying in the high alpine, we wear the Norrona Trollveggen Down800 Hooded Jacket. The lofty 800-fill down provides incredibly lightweight, packable warmth, so when we're not wearing it, it can be stowed neatly in our pack. The aeroDownproof material ensures all that valuable down stays in place, while being tough enough to handle long days in the mountains. The jacket is cut longer in the back for extra protection from wind and cold, and the adjustable hood is insulated for full coverage in frigid, alpine conditions.