It's an S size, but it's a larger fit, so it can fit a size M to L. It's a student uniform, but it doesn't have a school emblem or anything, and it's a commercially available item, not from a specific school, so I think you can wear it regardless of your school. I have other student uniforms as well, so please leave a comment! KANKO Worn once Shipping included is 4500 yen. Regarding size details, I may be slow to respond as I want to sell it as efficiently as possible.