Ultralight, windproof and toasty warm, the Special Edition Down Sweater protects highly-compressible 800-fill-power 100% Traceable Down (goose down that can be traced back to birds that were never force-fed, never live-plucked) with a water-repellent 100% nylon shell that's lighter and stronger than the original; ideal as outerwear or a midlayer on the coldest days.