Washed and dried it!
Ok, so by now, we know this is a cute top that is basically true to size but a little clingy. i prefer to wear it with a tank top or tee shirt underneath. it would also do well layered under something. for refernce, i am 5'7, about 120, and xs was the best fit.

but what i really wanted to mention is that i washed it in the machine on cold delicate and dried it on low, and it survived just fine!