Very pleased. Ive gotten these tanks in the past and they always seem to stretch out easily. Well, I think they may have changed their fabric for the better. This isn't as low of a cut too, which is great. Their older tanks were more lower cut which was annoying for running because it showed my bra. This tank is higher cut and really is perfect.  Im about 139 lbs 56, and ordered a medium. Its a tight fit but its perfect for running, I cant run in loose fitting tops. The shirt stays in place while running too. Ill be buying more!!