From HiEnd Accents, this duvet cover insert features:  Indulge in the warmth and softness of our down insert. With its cotton shell and sterilized down and feather fill, this insert provides you with superior loft and comfort for the best night's sleep. Be at ease knowing that our down and feather fill is ethically sourced (certified by the International Responsible Down Standard). Shell: Cotton Fill: Feather/Down Includes one duvet cover insert  Twin approx. 68" W x 88" L Full approx. 80" W x 90" L  Machine wash cold in a commercial-sized washer; tumble dry low; remove promptly Imported.