I ordered a size 1X (my usual size) and it fits perfect other than my boobs don’t completely fill the built in bra. I’m a C cup and it’s just enough but I wish I had a little more boob to fill it in. I don’t think sizing down would’ve worked for this it’s just not small boob friendly. I’m still satisfied since I’m a C cup but smaller cups I wouldn’t recommend (unless plus sizing and regular sizing are different- something I have noticed)

do not buy this if you have any boobs at all