I didn't know whether to write too small or too large. I ordered a small, Amazon sent an XS. The fit under the arms was way too tight (I'm 5'2" tall and 130 lbs for reference) but the rest of the robe was HUGE. Seriously huge. So strange. Save your money, this one is cut weird. I also hated the frog closures which were difficult to operate and seemed like they would rip out easily.