I'd first like to say that this is the softest, most comfy T-shirt I think I've ever worn.  It washes and dries well and doesn't shrink.  In my case, that was unfortunate.  I should have exchanged it for a smaller size, but decided to wash it and see if it would shrink. I just didn't want to go through the hassle of returning it.  My oops!  About the sizing, before I ordered I looked at the sizing chart and read the reviews.  My size was in between the XL and XXL according to the chart.  Some reviewers mentioned it fitting quite snugly.  So, I ordered the XXL.  Wow!  It is huge!  If I order again (which I probably will because I love the feminine shape, softness and heathery colors) I would probably order an XL or maybe even try a L.  For a 42" bust, the XXL is way big, the sleeves are about 4 inches too long and the neckline and shoulder are several inches too wide.  So, I'll layer this one and consider my lesson well learned.  :)