I purchased this pad along with my Kingsdown bed, it's a single size! Purchased from IDC Otsuka Kagu. I used it by putting a mattress cover over the bed pad, and then attaching a pad sheet with elastic bands. There are no noticeable stains, dirt, or tears. I purchased it with my Kingsdown bed, and I think it's thick and of very high quality. It can be used on both sides depending on the season: 　Mesh side for summer (photos 1 & 2) 　Wool side for winter (photos 3 & 4) The color is easy-to-match ivory. A bed pad made of wool, which is cool in summer and warm in winter. Wool is a fiber that is cool in summer and warm in winter. It absorbs moisture when the humidity is high, keeping the surface dry and creating a comfortable sleeping environment. How about it? Size: 82x192 ◎ I have washed it in the hand wash mode with a neutral detergent, but due to the nature of the material, it has shrunk slightly, and this is the actual size. I didn't mind, but I think some people might, so please check the size carefully before purchasing. Surface fabric: 55% polyester, 45% cotton Lining: 100% cotton Filling: 100% wool Filling weight: 1.24 kilograms I am selling two of the same item. There are slight size differences due to washing. Please check. If you have any questions, feel free to comment! Returns are not accepted after purchase.