Best bra ever for plunging neck line. The cup size does run small, I'm usually 32A and this 32B was perfect fit. It provides a little lift and is not visible under your dress/top. I used a little fashion tape just to secure the edge of the neckline to my dress and it stayed in place all night.
Overall This was a good item. It gets the job done. As stated, run very small. I usually wear a 32B and ordered a 34C Based on reviews I read. After purchasing I would have even purchased the 36C because the strap is not long enough.