The word “cup” is determined by the French. Because the bra was invented by the French in the 1920s, its predecessor was the Corset. The invention of the bra in France at the same time, also identified the resulting chest or breast size units. read more
The “cup” spoken of here, is the part of the garment that upholds the breast itself, and has nothing to do with the kitchen measuring cup. So, a bra that is a “34C” has a chest band of 34 inches, and a ‘cup’ size of C. read more
They're measured by cups AND band size. That's why there's a number accompanying the letter. Cup size tells you how big the difference between your bust measurement (around the boobies) and your band measurement (around under the boobies) is. For example and A cup is one inch difference between the bust and the band measurement. read more
The bra size (also known as brassiere measurement or bust size) is the measure which indicates the size characteristics of a bra. Bra sizes are usually expressed as scales, with a number of systems being in use around the world. The scales take into account the band length and the cup size. read more