【Product Description】 Waterproof Pad Sheet ・This is a 3-in-1 sheet that combines a waterproof sheet, a quilted pad, and a fitted sheet. ・Machine washable (using a laundry net) OK! Only one wash is needed. ・Can be used with both 2-part and 4-part futon mattresses. ●Product size (approx. cm): 75 x 124 ●Material: [Surface] 100% cotton, [Filling] 100% polyester, [Back] Polyurethane sheet used [Back mesh] 100% polyester ●Washing instructions: Machine washable (using a laundry net) ●Notes: When taking the laundry in, the waterproof surface (back) may adhere to the drying pole, and the processing may peel off. Please handle with care and do not pull suddenly. - Brand: nishikawa - Size: 75x124cm - Functions: Fitted sheet, quilted pad, waterproof sheet - Color: Ivory Retail price: 6,578 yen I purchased this at a store and opened it, but I made a mistake with the size. I have disposed of the packaging, but it is a new, unused item. Please consider purchasing if you understand this.