I was using this as pajamas during the summer, but I'm selling it because I bought new ones during the summer sale. There is no size indicated on the tag, so I'm not sure of the exact size, but I was able to wear it, and I usually wear LL-3L size, so I think it's around that size. Also, there is a noticeable stain on the crotch area from when I spilled breakfast (see photos 3 and 4).