30A bra size: chest and cup measurements, sister sizes in inches

According to our data, 1,28% of women in the United States, or 1738676 people, have this size. Among them: Hayley Williams, Saoirse Ronan, Jayma Mays. Below you will learn how size 30A differs from sizes 30AA, 32AA, 28A, 32A, 28B, 30B. Find out why it's smaller than average.

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