If you want to know about your size we recommend starting with our Fit Finder®.
Based on your fit notes, we will recommend whether you need to adjust your band, cup, or both. If your cups fit perfect but your band needs adjustment, you may notice that your recommended cup letter has changed.
As you adjust the band, the cup lettering will change to match the band size. This is known as sister sizing. To ensure the fit of the cup remains the same when adjusting the band, note this:
Up in the band, down in the cup
Down in the band, up in the cup
Here are examples of adjusting the band and cup with a size 34D with our bra sizing chart:
Cup fits but band is too small: Going from a 34D to a 36 band would bring your size to a 36C. When you go up in the band, you go down in the cup letter but the volume of the cup stays the same.
(Note: Again, because of the way bra cup sizing works, different cup letters can have the exact same cup volume, depending on band size. What this chart shows is 30F, 32E, 34D, 36C, and 38B all have the same cup volume.)
Cup fits but band is too big: Going from a 34D to a 32 band would bring your size to a 32E. When we go down in the band, you go up in the cup letter but the volume of the cup stays the same.
Band fits but cup is too small: To increase the cup size, go up in the cup letter from a 34D to a 34E.
(Note: On a bra sizing chart, if the band feels great but the cups are not fitting well, you take the cup letter up or down in alphabetical order depending on whether you need a larger or smaller cup size.)
Band fits but cup is too big: To reduce the cup size, go down in the cup letter from a 34D to a 34C (alternatively, if the cup is just slightly too big, you can also try 34C1/2).
Cup & band are too small: Going up in the cup and band from a size 34D would bring you to 36D. Don't be thrown off by the same letter. The cup volume on size 36D is a cup size larger than a 34D.
Cup & band are too big: Going down in the cup and band from a size 34D would bring you to a 32D. Don't be thrown off by the same letter. The cup volume on size 32D is a cup size smaller than a 34D.