Moving' Comfort Juno and Maia. I've used each of them for full marathons and loved them both. The Maia is my favorite because you do not have to pull it off over your head like the Juno. The Juno worked great but I often needed help getting out of it while I was tired after a run.
The lady who assisted me when purchasing my bras said that you usually need to go up one number size, and/or a cup size because they don't have as much give as a normal bra. I'm normally a 38DD and my Maia is a 40DD. It is pretty tight but relaxes a bit after a few minutes. I can still breath fine.
