The Patagonia Down Sweater Vest from the Fall/Winter 11/12 collection. Ultralight and windproof, the Down Sweater Vest features warm, highly compressible down insulation and can be worn as an outer or midlayer in cold climates. Simple, lightweight core warmth. This vest's minimalist design practically floats, its 800-fill-power down traps heat in alpine conditions, and it's so compact it stuffs into a stretch-mesh internal pocket (with a carabiner clip-in loop). The polyester ripstop shell is tear resistant and has a DWR (durable water repellent) finish.