Love this shirt but it is really really small!  My assessment on sizing is that this top in the XL is equivalent to a fitted misses small/medium T shirt.  I'm keeping it for a party, but wish it were a litter looser.  The XL is very narrow but long - sort of a short tunic, tight in the hips and I have narrow hips. There is an adult size version on Amazon, but I don't like the style of the graphics on the front - sort of X-rated LOL  In any case, this shirt is very well made and the colors are great. Good luck!