Originally Posted by IchiBLEACHcake
I have looked into full cup bras, but the problem is that I haven't actually found a size that would go completely around and not leave a massive seam from the underwire, etc. I'm a B38, but I need more of a large C for Cortana and a lot of the bras have lace or other little accessories that would show bumps and look unnatural. I just haven't had any luck finding anything that could work properly in the realm of bras.
I used to use a seamless bra by Victoria secret for underneath zentai and it never showed (I did not glue it on.) The bra was made such that it didn't have thick parts where it met the skin. Maybe you could find similar. They had from A to DD cups.