Member of the Itty Bitty Titty Committee over here. So I have the same problem with bandeaus for different reasons. It stays up well enough for hanging out on the beach- you can walk around and do things no problem but honestly, I'm so scared of one slipping off that if I know I'm going into the water, I add the removable straps to all my bandeaus. Honestly, I don't think they'd give any support in a larger size, so they might not work for you. Also, the bottoms are tiny as hell. Didn't bother trying them on 'til I got home since I know my size pretty well at VS.