Create an oasis out of your space with the Natori Cherry Blossom Bedding Collection. This elegant duvet cover set features a 100% cotton sateen face with light grey ground and cherry blossom branches inching up to the top. The heather grey reverse has a 100% cotton percale dark for a dramatic feel. 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.