What's the Deal with Sister Sizes?

What if we told you that a 34B and 30D are essentially the same cup size?

Well, it's true. Just look at the pic above which shows a 34B and 30D of the same bra - can you be sure which is which?

Odds are, you were sized at one point or another (if not, we'd be happy to help - book a fitting now) and have been buying that size ever since. Bra sizes are very different than clothing sizes because they're based on a sliding scale, meaning that you can fit into more than one size. The rule for sister sizing is, if you go up/down a band size, you go down/up a cup size (in the opposite direction).

For example: if you typically wear a 34D, your sister sizes would be 32DD or 36C.

We know it can be confusing, so remember we're always here to help and if you shop online by size, we've noted your sister sizes to make it easier!

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