Delie Fajas Posture Corrector Bra With Enhancement

I bought this bra after a mastectomy. Wanted to try something different since I can only wear the post surgical bra, but the cup of this bra runs very small. I normally wear a size D, but the cup was very small. I didn't want to order a bigger size because I was afraid that the bra will be big and the cup the right size. I like the material as it is similar material as the post surgical bra I have been purchasing. The material provides back support if it wasn't because the cup runs very small.