I bought this t-shirt at Paul's concert at Barclays Center. I was told it was a girl's size medium (they also hade it in men's sizes); I'm assuming it's the same as a juniors size sold here. I love this t-shirt! It is on the smaller end of a medium. I love the way it fits. Shows off your curves, It is also really soft and nice quality. My one complaint is about this website not having a size chart. It really is necessary. Hope you can fix that!