This is custom and is tagged a M top and bottom. HOWEVER- these are most definitely S. I have a separate blue one that I’m selling that is indeed a M. If you need a M, this suit will be too small!! It’s a 34D top and S bottom. It was do able for me; but not correct fit and arrived too late to change. It retails for $800.00 Asking $450- worn only for Miss Volunteer America.