I am an extra small in everything . I’m 5”0 and barely 100 pounds. Never in my life have I ordered an XS that didn’t fit me, especially on my top portion because I have a little boys chest. But I truly thought I would have to cut this off. My little brother was the only one home and had to spend 5 minutes trying to help me get this off. There is no stretch no nothing. So....def size up & it will be worth your money !!!