Originally Posted by lsanders
The thing my fitter at Macy's said (she was just a Macy's employee, btw, not a rep for any specific brand) is that you can go with what they call "sister sizes"- if you go up a band size, you can go down a cup size and it will probably fit you.
Don't forget, the band size is the finite measurement. The cup size is relative to that band size. So a c-cup on a 32 band is a lot different than a c-cup on a 44 band.
Sometimes the sister sizes work, sometimes they don't... I'm small enough around that a 36 band rides up in the back, which a bra band is NOT supposed to do. it should be horizontal all the way from under the 'girls' around to the back... it should not ride up at the back... that means it's too big. a 36 does that on me... so the sister size doesn't always work... always, always, always try them on in the store...
As for the band size being finite and the cup size shifting, yes... the cup on a 36C is not the same size cup as a 38C...
And even if a sister size did work on me, I STILL wouldn't be able to buy bras at VS...