Sister Size: How Do Sister Sizes Bras Work? - Understance

When two bras have sister sizes, it means they share the same amount of the volume in the bra cups, but different band lengths. Here's the ultimate guide to sister sizes by Understance.

Understanding Bra Sister Sizes

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Understanding Bra Sister Sizes

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Sister Size bra chart. It tells you all of the sizes you can wear when you can't find your usual size. Any s…

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