I have tried several nursing bras based on reviews.  This one had so many positive reviews that I decided to give it a try despite the fact that it has no padding.  I ordered a 38D.  I find that every bra is different in size and ordered a 38D because the last Anita bra I tried had a cup size that was way too big and the band size a bit snug.  I was measured as a 38E a month or so ago.  I am 3.5 months post partum and honestly my bra size probably changes on a daily basis from weight loss and engorgement, etc.  I was so excited to get this bra in the mail.  When I tried it on I found that the cup size was perfect (a little loose right after emptying both breasts, so plenty of room to allow milk to fill back up). The band size was too large.  I had it on the tightest back clip and was still too loose.  Other than the band size being one size too large everything else was perfect.  It is extremely comfortable.  The material is nice and stretchy.  The shoulder straps seem to be of good support.  The band is wide enough to help prevent "back fat."  I am returning this one and getting one in a 36D.  Hopefully this will end my long search for the perfect maternity bra.

Update:

I received the size 36D and it fits perfectly.  This bra is sooo comfortable!  I have sensitive skin and there has been no skin reactions thus far.  The fact that it is not padded makes nursing very easy and the cups just fall out of the way.  Finally after returning 5 other bras I am keeping this one.