5’4, 170 and I purchased a large and I’m glad I did. My breast size is a D I would suggest if you have bigger to go up a size cause there’s not a lot of space up top

I have to be careful with any romper or jumpsuit from FN because the backs never arch and align to my natural back curve.. this romper wasn’t so bad.. soft material.. I’ll make it work. I’m 5’7 170 lbs for reference and normally between a M-L.. Ladies please stop putting the same ol review “ cute, you can dress up or down” 😫 We see that too much!! Add your height and weight along with the size you purchased.. that is all us reviewers look for!!!! thanks in advance.