These are my favorite ever sports bras, as the support cannot be beat! I have three of them so far and they have been amazing for both running/jogging and daily CrossFit. I never feel bouncy or unsupported; I stay right in place, but without the dreaded sweaty uniboob. I am a 32DDD, but I get the 34DDD/F in these bras because the band is a little bit tight, even on the loosest set of hooks. In fact, I have an older one that is 36F from when I was a bigger size, and I can still fit it just fine. Size up a band size if anything, but you will not be sorry you invested in these awesome bras. They breathe great and are simply the best!