Sourced from our textile partner in Austria, a shell of whisper-weight cotton nano-sateen encloses the Chamonix comforter in silky softness. Inside, 800-850 fill-power Siberian white goose down—revered for its unparalleled insulating properties—provides the comforter with its signature cloud-like loft and fluff. The comforter is hand-tailored in our Wisconsin facility, ensuring attention to detail that can only come from time-honored artisan techniques. Offered in four weights for custom comfort in every climate and season. Materials & Care: 800-850 fill-power Siberian white goose down440 thread count | 100% cotton Austrian nano-sateen shellSateen piping is double handstitched for durabilityRDS (Responsible Down Standard) CertifiedOEKO-TEX® STANDARD 100Professional dry clean recommended Details:From our Supreme collectionMade in America using European materialsLimited lifetime warrantyArrives with a certificate of authenticityComplimentary fill adjustments within 60 days of purchase Dimensions:Twin: 71" x 86"Queen: 90" x 94"King: 108" x 94"Lux King: 116" x 102"