A special hypoallergenic microfiber fills the Arcadia down-alternative collection; whisper light-fibers create a down-like loft that’s comfortably warm and cozy. Designed like a down blanket, with a sewn-through hourglass patterning that’s pretty enough to use on its own as a stand-alone blanket, but smartly versatile, so you can use it as a duvet stuffer for clean, lightweight warmth.