At first I thought this was a great bra...comfortable, simple, and low-cut enough for my needs which are fairly modest anyway. It initially creates EXCELLENT separation.  The problem lies therein:  one of my girls kept gravitating back toward the middle and escaping out over the top.  It wasn't the cup size or the size of the bra; those seemed quite correct.  The cup simply didn't contain what it was supposed to.  I am hesitant to wear this bra at all now, unless I'm in a place where I can constantly reach in and "re-stuff."  This was a big disappointment.  My size is a 36D.