The size is M. I wore these when I was about 158cm tall and weighed 52kg. The floral short-sleeved top is from Uniqlo. Basically, there are no noticeable stains. Please understand and consider that these are used items and may have wrinkles from home storage, minor oversights due to amateur inspection, etc. If you have any questions, please comment before purchasing. We do not accept cancellations after purchase. Thank you.