I WISH there was a way to order this top in bra sizes, but either way the size chart is a joke. The first time, I ordered a size 24 top and bottom, and while the bottom fits perfectly, the top was loose in the band and the cups had to be, what, three cup sizes too big? Maybe four! I exchanged it for a new set, size 24 on bottom again and size 20 on top. The cups are still just a little too big in that if I move around in the suit my breasts unseat themselves and the band could still be tighter--I could probably stand to go down to an 18. MY MEASUREMENTS PUT ME AT A 24. At this point though, the liner came out of the bottom by accident and I can't get it back in, so there's no exchanging it. It looks very good for lounging, though, and the colors and print are phenomenal. At least I know for future reference, now.