Can anyone recommend a style of swimwear for girls with sagging breasts?

This guy I’ve been talking to has invited me on a trip to a tropical location which will involve swimming and otherwise lounging in swimwear. I’m not as young and perky as I used to be and my boobs sag quite a bit. Can anyone recommend swimwear that will provide some support? If the occasion doesn’t involve romance I just wear a bikini top that provides no support whatsoever and don’t care but for this I want to look as good as possible.