My size 30D in this bra is almost perfect, so I decided to try sizing up and am happy to find the 30DD works great. It's comfy to wear all day and creates a nice shape. It is one of the best solutions I have found in my 2013 quest for some everyday bras that fit!
I bought this bra in a 30D while in denial of being a 30DD of the same brand after my 30DD had worn out a bit. Lo and behold, the cups are too small. Bought another 30DD and love it. https://d28qt14g3opchh.cloudfront.net/smileys/icon_smile.gif" alt=":)" />
This bra fits great so far. I tried on a bunch of Calvin Klein 30C bras at Dillard's and they seemed to vary immensely in band tightness and cup size. This had the tightest band and stays in place really well (such a nice feeling after wearing 34A's my whole life!) I have a very very slight quad boob in this bra, but it's pretty negligible. This style of cup might not be the most flattering on me (think I will look for more of a balconette style for my next bra, but all things considered, I really love it!
When I first purchased the bra, the band fit was good, but since then has become loose. In addition I have serious breast tissue migration with over spillage on the band on the sides and back and I get the quad boob when I scoop and swoop. When I move my arms, I no longer get quad boob but instead I get armpit boob. In addition my other issue is that I have a short torso, so the cup is too tall, I realize I need to find and wear bras with shorter cups to reduce issues with the cup causing quad boob when I move my arms.
The one thing I did notice is that the hidden elastic on the bottom of the band has warped, in essence, it does not lie flat and wants to curl into a tube.