The Patagonia Down Sweater Full-Zip Hoody Jacket. Seriously. Is it a hoody, a sweater, or a down jacket Well AAAAAA 1/2 letAAAAAA 1/2s just say that this 800-fill down torso-cover works as an ultralight insulating layer for frigid treks and as a windproof, water-resistant shell for mountaineering and alpine climbing trips.