26 Bands and Below

Unfortunately, the industry standard smallest size is usually a 28 - this is a case where you may have to work out your sister size for a 28 band. There are a few brands that do in fact make 26 sizes, but bear in mind that due to their exclusive nature, they may be more expensive than 28 sized alternatives!

Exclusively AAA-C Brands

Wait, there are sizes smaller than an A? Yes! An A cup indicates 1 inch of difference in band:bust, but a AA is less than an inch of difference, and a AAA is when there is no difference at all.

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