“S is XXS or even smaller”

“2 stars because of fit. I wanted this shirt for cool weather running. I'm 5'6, wear a 34B bra. I consistently wear a small top, with occasional exceptions. But why, oh why, didn't I pay attention to the reviews. The small in this was at least one, probably two sizes lower. Only a thin, small boned person could get into this shirt. If you fit that description, you will have a pretty shirt at a good price. I would recommend this to a friend if I knew anyone that small, but I don't think I do. It would probably be better suited to a junior size young teenager.”