This special Sferra Bros. Ltd. king duvet crosses the thermal insulating properties of featherweight down with the easy-care attributes of modern techno-fibers. A baffled construction allows room for the hypoallergenic 100-percent micro-fiber fill to breathe, keeping it fresher and helping to maintain the fills warming properties. Sleek 330 thread count all-cotton sateen shell with double-stitched piping, available only in crisp white, of course. Easy to wash and dry.