Holy smokes this totally doesn't fit my breast shape! I would say this fits more like a 32F than anything, and only for a person with a very top full breast! I could almost fit snacks up on top and noone would notice! Haha! Lovely quality bra, just not at all meant for my breast shape!
The band on this bra is very snug, but does not cut into the skin, as it is also pretty wide. I think I don't have enough projection and upper fullness to fill out the cups on this bra, but the cups might also run a little large. The wires are pretty wide. The straps are very thin, but as this bra is supposed to be wearable strapless, I think that you shouldn't count on the straps for support.