So- I must say that , for the cost, this is a beautiful dress.  I am 5;4 140 lbs 34D and I needed a large, which follows the manufacturer size chart.  Normally I wear a 6-8 in dresses.  The padding inside is nice so you don't need a bra, but it feels and crunches like cheap foam and the straps are pretty low quality.  But for a few wearings for parties it's a great choice!!