I second the Moving Comfort Maia. I have two and love them for running. Also make sure you are wearing the right size bra. Read through this and measure yourself. http://sameatschildren.tumblr.com/post/45962915522/do-it-now-guide-to-proper-bra-fit-and-measuring Once you know the proper size, you will have better luck with finding a sports bra that holds the girls (as well as can be when well endowed) and how it fits.