I probably should have got the B cup but went for the A for more push. The bra claims two cup sizes and delivers. This is the most padded bra I own about 1 and a half to two inches of built in padding. My brests are pretty much squeesed out the top of an a cup. they look huge though. Especially in my V neck print dresses. I am pushing D cup bust with the bra on Kinda looks funny on my frame lol. People will be in for a big dissapointment if the bra comes off lol. Self expressions really deliver on their promis. I would highly reccomend if your close to a B cup just get the b cup cause the A cup will be kinda tight.