Is bra size 30 bigger than 30aa?

Bra size 30 is not inherently bigger than 30AA; rather, the size designation refers to both the band size (30) and the cup size (AA). The number "30" indicates the band measurement around the torso, while "AA" denotes the cup size, which is smaller than A, B, or larger cup sizes. Therefore, a 30AA bra has a 30-inch band but a smaller cup volume compared to larger sizes. If comparing to a 30A, then yes, 30A would be bigger in cup volume than 30AA.