This bra has really surprised me, I never expected it to be so comfortable. I wear a 38DD , but I purchased a 38D because that is normally what I have to do in order to get the support that I need. Actually what I normally have to do is wear two sports bras while working out, to get adequate support. However, this bra does the trick. Even going a size smaller, the bra is soooooo very comfortable and provides great support for my heavy breast. I actually purchased the Moving Comfort Womens Juno Bra as well, and as usual I went a size down, and now that was a big mistake. I put it on and it was super tight but I decided to work out in it anyway, big mistake, huge mistake, I almost fell out because the bra was holding me down a little too much, it would not let me get enough air in my lungs,lol. That bra did its job a little too well, so if you happen to buy the Juno, do yourself a favor and get your correct size.  However, let me say that I am now a fan of the MOVING COMFORT FIONA bra, it is the best supports bra I have ever owned. In my workouts, I am running, jumping and kicking all over the place and I don't have to worry about my breast hitting me in the face, I don't have to worry or concentrate on whether my breast are bouncing too much, I can just relax and concentrate on my workout. It provides great support and comfort, what else could you possibly ask of a sports bra. I am a fan for life.