Question: what is a bra size number?
Answer: The numbers - like 32, 34, 36, 38 – tell you the band size – that's the part of the bra that goes around your torso. In other words, a 34A means that your boobs are an A cup and that your bra is 34 inches around. The best way to figure out what cup and size is right for you is to go and try some on.