This is a long-sleeved GU checkered shirt. Size is M. I wore it 5 times and stored it in a chest of drawers. I'm selling it because I don't use it anymore. There are no noticeable stains, but it has been used. It's thin, so you can wear it as an inner layer, or wear it as a light jacket on slightly chilly days. It's made of a soft material, so it's comfortable to wear! Please refrain from purchasing if you are nervous about used items or do not understand second-hand goods.