Create a shabby chic look in your bedroom with the Celeste Collection. The 2-in-1 duvet cover has a quilted top and button closure providing the option to use as a lightweight coverlet by simply buttoning up the bottom or fill with a comforter insert for a warmer option. A duvet cover is a protective cover for your comforter, most likely for your down comforter. Sometimes it's referred to as a comforter cover. Duvet covers are not filled. It has an opening where you can insert your comforter. Filler not included.