* Band Size: The first number (32 or 34) represents the band size, which measures the circumference around your ribcage. A 34 band is larger than a 32 band.
* Cup Size: The letter (A or B) represents the cup size, which measures the volume of your breasts. A B cup is larger than an A cup.
Even though the 34A has a larger band, the smaller cup size makes it overall smaller than the 32B.