Which bra size is bigger 32D or 42B?

The answer is 32D.

Bra size is determined by two measurements: the band size and the cup size. The band size is the measurement around the ribcage, just below the breasts. The cup size is the measurement of the difference between the bust and the band size.

In the case of 32D and 42B, the band size of 32 is smaller than the band size of 42. This means that 32D has a smaller ribcage measurement than 42B.

The cup size of D is larger than the cup size of B. This means that 32D has a larger bust measurement than 42B.

Therefore, 32D is a larger bra size than 42B.