I ordered according to the chart size but I thought these bras where to big for me.  I'm a 38DDD and I refuse to wear underwire bras.  I usually were sports bras by Champion so I'm used to having no separation between my breasts.  I could try a size large and see if that makes any difference but I'm pretty happy with a pull over bra I purchased by Bali.  The elastic under the bust on these bras looks like it would hold everything in place but it doesn't seem to work for me.  I think the whole bra should be made of the banded part under the bust area.  But I like that there is separation between my breasts.