Sferra's Utopia Down Collection simply defies fill power — this extraordinary down is culled from the Eider duck and is renowned throughout the world as the most efficient insulation against the cold. It’s also a relatively rare down, one you won’t see everywhere — which is why Sferra encased their finest level of down in a sumptuous silk ticking, making the experience of Utopia all the more indulgent, opulent, and beautiful. As Sferra's rarest gem, Utopia is available by custom order only. All items are custom, made to order, and require a 4 -6 week lead time. View our down guide for more information. 100% Icelandic Eiderdown. 434 TC 100% German silk jacquard ticking. Decorative piped edge. Comforters have corner loops and 12" baffle box construction. Made in USA from imported materials. Care: Dry cleaning required. Sizes: Twin, Full/ Queen, King Weight: Light Summer Weight, Medium Year Round All Seasons, Heavy Winter Weight