I had a lot of hope for this super cute bra.
I am a 38 H (US size)- I can sister size into a 40 G. I ordered based on my measurements; the fit is terrible. The band is very loose although the material fits across my bust there is not enough material to fully cover all of me which causes the band to gap under my breasts. If I am able to get my boobs out of my armpits (where the material pushes them) and the band to sit against my chest the girls are spilling out the top - it's almost like they just added material around but not any where else to account for more flesh that naturally occurs at larger sizes. There is also almost no support in the material which means there is much sagging which in turns pulls the racer back up and my neck is holding everything up (comfy). The description says "compression"- that's a joke. It also says light support - "perfect for studio classes" I wouldn't take the stairs too fast in this thing, if I didn't get a black eye someone would get a show.
If you've got a larger cup size I would skip this bra.