Cannieyau,
It looks like the bra measures about 5 1/2 from top center to bottom center and about 7 1/2 across the center from side to side. I have never worn this set but have one similar and they are comfy. It is built on a regular underwire bra and it is a soft cup. On my other one I added a firmer pad on the inside for some added shaping.
Maybe these pics will help.