Tabby Cat Black T-Shirt Kitty Heads Youth Very Small - I think that this would fit a girl in middle school. It seems really small to be an adult size but kind of big for a child's size. Somewhere in between is who it would fit. Please use the measurements below to check the size against something that you or your elementary aged child already own to see if it will fit.
It doesn't say that it's a childs size shirt but it looks like it is.
14" from armpit to armpit (this is a small size)
23" from shoulder to hem