I have traditionally purchased my nursing bras from Motherhood Maternity or Target, but I found that the bras I had from my first daughter were not fitting well when my second daughter was born recently.  As all nursing mothers know, your breasts are not the same exact size throughout the day and as your child ages.  At the beginning, there is the issue of engorgement, which makes fitting into most bras problematic.  (They fit fine when your breasts are empty, and you are popping out when they are full).  This nursing bra completely solves that problem because of the spandex-type material that stretches when you need it to.  On the flip side, it still fits well when you are on the empty-side.  I like that the bra doesn't have an underwire.  This is so much more comfortable when you have to flip the bra down to nurse.  Despite it having no underwire, I DO find it supportive enough and it gives me a pretty good shape.  The only thing I would say is that that cups in the bra do shift, but you can easily reach under the fabric to adjust as needed.  I don't know if I would wear this bra with a paper-thin, borderline see-through shirt, but it does fine with most of my clothing.  I would definitely recommend this bra.  It's honestly the only nursing bra I wear now.  It's a little bit more expensive than many nursing bras on the market it, but it was DEFINITELY worth it.  I usually wear a 34C - 34D and the medium fits well.  I could easily see it fitting smaller and larger women equally well because there are several settings to clip in the back.  Nursing moms, buy this nursing bra.  You won't regret it.