I'm typically a 44B, yes large chest small breasts. So I was worried the 3X wouldn't fit around my rib cage (per the size guide) and it fits perfect!!! SO glad I took the chance on the sizing. Its so comfortable and the band is wide enough to sit nicely without rolling down or my chub squishing out. My only gripe is the hearts and my nipples don't match up, its funny but it still looks cute and sexy.