What kind of underwear is suitable for women with small breasts?

What size cup of underwear is suitable for women with small breasts? This is a question of underwear size.

First of all, if you want to say how large a cup of underwear is suitable for a small chest, it is actually not clear, because the cup size is determined by the bust (upper bust and lower bust).

So, to know how much underwear to wear, you must know the upper bust and lower bust sizes, and then use the upper bust size minus the lower bust size, and then use The obtained upper and lower bust difference can be directly compared with the underwear size comparison table and find the corresponding cup model (abc...).

You can also refer to the method that the bust difference of 10 is a cup, 12.5 is b cup..., the cup will be upgraded by one level for every increase of 2.5, and so on.

Sketch diagram of correct bust measurement (do not measure across clothes or stand upright, you should lean forward about 30 degrees and measure naked)