WACOAL Kotatsu Cover *Color* Brown系 (Etuff) *Size* 210 x 210 (Large Square) Cotton 100% There is a zipper on the center of the back side, and you put the kotatsu futon in from here. Opened for photography. Stored in the closet at my parents' house. This high-quality kotatsu cover is no longer available. Why not welcome the New Year with it? This kotatsu cover cost nearly 20,000 yen.