What is a bra sister size?

Bras have sister sizes that are compatible with one another; this means that even though we may be out of your typical size of in an item you may be able to choose a compatible mate.


Ex: If I usually wear a 38C and the size is out of stock, trying a 36D may be a better choice than trying a 36C. The cup size is the a little large but the band itself is smaller.

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