34B, 34C,34D,34DD,34E,34F,34FF,34G,34GG,34H etc, What do all these bra sizes have in common? they all have the SAME Band size, or same ribcage size; but different volume of breast tissue 
34B,34C,34D,34DD,34E,34F,34FF,34G,34GG,34H,etc; What do these bra sizes have in common? they all have the same band/ ribcage measurement. But they differ in the cup size measurements/volume of the breast tissue.