I CANNOT STAND straps that go around my neck so I ordered the version with the straps around the shoulders.  With this version, the cups just literally SIT on top of my breast; zero support and the wire pokes under my arm a bit.  I always follow the size chart but I guess this time it wasn't quite right - I know for sure if I went smaller that the bottoms would have been too tight (which is the problem for us curvy women where our top is small yet we are bottom heavy)  Anyhow, for your reference, I'm 5'4, 171lbs (on a good day), 34-35 inch waist and 44 inch hips which equates to a size 4XL for the chinese kids making these but size 10-12 in US sizes.  Get it if you can tolerate those issues but I can't.  VERY cute tho.