This is a Japan-exclusive Jordan x Georgetown University practice long sleeve shirt. It's comfortable thanks to Dri-FIT technology. It's been worn a fair number of times, so there's a sense of use, but there are no noticeable stains or odors. The size appears to be S, but it's likely a US M size. The size measurements are as follows: Shoulder width: 43cm Sleeve length: 65cm Length: 74cm