Bra model consists of bra size and cup size. Generally speaking, a woman's bust refers to the length of a circle around her breast along her nipple. The bra size refers to the female lower bust, that is, the length of a circle around the breast along the root of the female breast. The cup size refers to the difference between the female bust minus the lower bust.
Extended data
Although underwear manufacturers make bras according to this standard, due to the material and style, some other reasons, and the types of cups (such as half cup and three-quarters cup, etc.). ), some people may wear 75B but find that some brands of 80B are also quite suitable.
When buying a bra, try it on as before, especially buy brand-name underwear for several hundred dollars. And the calculated number of cups is not necessarily the size you should buy in the end. There are three possibilities:
1) Too much fat: the number of cups should be one level higher. (For example, when the difference is C, D is usually selected.)
2) The calculated difference is vague: try to choose a larger cup model, so that the breasts have room for development. (For example, if the difference between C and D is 15, D is usually selected. )
3) The breast shape is flat as loose sand: the smaller the measurement difference, the greater the cup grade. (For example, if the lost fat is molded according to the scientific dressing method, the measured difference is the B cup, so the selected cup is the C cup).
References:
Baidu encyclopedia-bra size comparison table