They need B size cups in larger sizes.
Some of us don't have large breasts but still need the inches around our bodies. This reduces the 'support factor' significantly!
Also, the lovely netting to cover cleavage starts out looking good and covering, but within moments the bra has shifted downward and its no longer up where I wanted it. It's right back down to top of cleavage.
Adjusting straps didn't help - just made it uncomfortable.
Maybe it's just my body, but...