What if I'm between bra sizes?

If you find yourself between bra sizes, try your sister size.

Bra sizing works by taking both cup and band into account. This results in a vast and varied range of bra sizes that can accommodate a broad scope of unique bodies. This also means that the differences between certain sizes can be quite slight and subtle. A sister size is when you go up in band size and down in cup size, or up in cup size and down in band size. These similarly sized bras are known as sister sizes.

Sister sizing is used when the band is too tight or too loose, but you’re happy with the fit of the cup. In these cases, a full size jump up or down would be way too much. By using your sister size, you can solve for band fit issues.