Sleeve... Short sleeve Material... 100% Polyester, quick-drying ☆Worn only a few times, with no stains or scratches. Overall, it's in good condition with minimal signs of use. ☆Size → Labeled as M size. (Please see the tag in the photo.) I have also measured it with a tape measure, so please check the photos. ☆I generally do not measure sizes in detail with a tape measure ( ; ; ). Please understand that returns due to size differences cannot be accepted. ☆Immediate purchase OK. I will prepare for shipping as quickly as possible, but please understand that I work during the day, so there may be delays in my response. ☆There are no noticeable scratches, stains, or dirt, but please understand that this is a used item.