This is a simple black shirt from ESTNATION. I don't remember the exact price, but it was over 10,000 yen. I bought it, but the size didn't quite fit, so I only wore it once and then stored it. (※There are wrinkles from storage. Please wash it once.) It's a size M. The chest width is also made quite slim. (※I think it would fit someone around 170cm tall and of a slender build) The fabric is cotton and thin. Therefore, it has a dressy feel. (※The buttons also look like they're made of shell, although I'm not sure if they are real shell) Thank you for looking. No claims, no returns, please.