This is a Ralph Lauren long-sleeved shirt, size XS. Although it's size XS, it's a foreign brand, so it's likely equivalent to a Japanese size S to M. The seller is 172cm tall with a slender build, and it fits just right. I haven't had many chances to wear it, and it's been stored for a long time. I think it can be worn in various ways from now on. The condition is not bad.