Kotatsu cover and futon set, 2-piece set, more voluminous type, 4 shaku, rectangular, 80 x 120, suitable for tabletop, choice of microfiber flannel, dust mite resistant, space saving, stylish The secret to its warmth is its volume! The "more volume type" with twice the amount of filling as the slim type is very popular! You can choose from three types of duvets to suit your needs, including an affordable slim type and a classic voluminous type, depending on warmth, storage, etc. [Clean type] It is light and not heavy, so it looks neat and stores neatly. [Volume Type] With approximately 1.4 times the amount of cotton as the slim type, it's even warmer! [More volume type] No.1 in popularity! The amount of padding is about twice that of the slim type! It's voluminous and warm.