B Cup Bras

B cup is one of the most versatile sizes to shop for — most styles across lingerie in general are designed around this kind of proportion, so choice tends to be genuinely good here rather than limited to a handful of "safe" options.

Sizing note

A B cup means roughly a 2-inch difference between your bust and underbust measurement. Band size still does most of the work in how a bra actually fits, so it's worth confirming yours with our bra fitting guide if it's been a while since you last measured.

Frequently asked questions

Is B cup a good everyday size to shop?

Yes — it's one of the sizes with the broadest style choice, from everyday cotton to structured full cup.

What if I'm between A and C cup?

Try both neighbouring sizes — our A cup and C cup collections — since fit can shift slightly between brands and styles.

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