What does "Z Cup" mean?

Z cup refers to Z cup, which is usually used to describe a woman's oversized breasts.

A detailed description of the cup

The cup sizes behind these numbers are a, b, c and d. The difference in bust refers to your upper bust minus your lower bust. The allowable error is plus or minus1.25cm. If your bust size difference is 13cm, it is of course a B cup.

The difference between lower bust and bust AA :7.5cm, A: 10cm, B: 12.5cm, C: 15cm, D: 17.5cm, E: 20cm, F: 22.5cm. ..

For example, your lower bust is 79, that's 80, and your upper bust is 92. Subtract the two numbers to get 13cm, which is the B cup. Put them together. Congratulations, the bra you should wear is 80B.

If your upper circumference is 87.5cm, your lower circumference is 75cm, and the difference between upper and lower bust is 12.5cm, then your cup is B, and you should choose the size of 75B.