david
yes.

Connor L
ya u r

ÇŕĄĀŻżỷ ĢĭяĽ שּׁĺťĦ їςẹ ĉřЗÄm
yes or a swimsuit

bob
Im not a girl ,obviously. but i know girls that are hardcore spongeriders, and they wear the rashguard over the bikini top..and then slip it off once they get the rash guard on(getting it back on ,well thats the tricky part).but you will find that just using the rash guard is allot more comfortable when you are in the water.

dwayne_d4
I live in Hawaii, and surf all the time! girls always wear a bikini top under their rash guards, The material is pretty thin and you would be able to see the entire outline of your breasts.

Draven Syr W.
Rashes do not belong in a bikini