I ordered my regular bra size. Well, I think I can get away with it for the gym, but not under regular clothes. I'm pooching out the top (wowzer cleavage, though. lol) and on the side. So if you order this bra, and I don't think you'll be disappointed if you do, then you MUST order at least a cup or two size larger than your regular bra size. Normally I wear the Glamorise Women's Full-Figure Sports Bra, White, 42DD. I'm going to order another one but in a larger cup size. Hope this helps.