Although there's no size label, it seems to be an XL, as it's large on me, who usually wears L. It might be too big for someone who usually wears M... There's no stretch, so adjusting with a belt is recommended. It's very voluminous, and you can enjoy a full, unique flare. It's girly and cute, but I can't pull it off, so I'm getting rid of it. ( >_< )