This Bra fit great when i first bought it, but after awhile it was very painful under the arms. It doesn't rub, I think the under-wire was too wide/narrow. It ended up in the bottom of my dresser and i recently found it again, It doesn't bother me now.
I tried this bra on in the store, the cups are molded cups that give a rounded shape, The underwire almost feels like there is not enough padding around it, it felt a little uncomfortable, I thought it may have been sitting on my breast tissue but it wasn't.