I purchased this for my wife in the XS and she is 5'4" and wears size 0. It is designed for a not very tight fit. The shirt does create an attractive visual balance with the deep V in back and fairly plain wide neck + ¾ sleeves in front. Overall, it is very sexy with jeans and if you have a good looking back (she does). By the way material is thin and back is very open, so if you have not already figured it out, you will need something for your girls like silicone stick-ons).