Maruhachi Mamen's duvet cover (pink) Purchased for around 18,000 yen. Although it is unused, it has become soiled during storage, so please be sure to check the photos. The feel is very good, like extra-long staple cotton. It's not stated, so I don't know for sure, but it's probably extra-long staple cotton. Stored at home. Maruhachi Mamen products are expensive, so why not take this opportunity if you'd like to try one?