I have just finished trying my bra on and it fits perfectly. This bra was bought for my upcoming wedding after doing research on the best fitting bra with support for my DDD boobs. Ladies this is how I got my sizing perfectly. After doing intense online research for this bra, i found that this 'formula" works best. For this Longline bra the band runs a bit small, so for this particular bra I suggest you go up one band size, then go down 1 cup size, to maintain the same cup volume e.g a 34F should try a 36DD. (I am a 38F and a 40 DD fits perfect).If you have a tummy or are wide in your mid-section, I suggest going up 2 band sizes. Again, for every band size you go up, you should go down a cup size to maintain the same cup volume: e.g. 40DD should try 42D, with a tummy try 44C.

I tried the above "formula" and I got my perfect fit. I highly recommend this bra. My only problem with it, is that you may need some help to get it hooked up. Hope this review helps.