The thickness of thin cups is even, generally less than 0.5 cm, because thin cups are light and breathable, which is more suitable for girls with full breasts and C cups or above. The cup will not be empty, and the full breasts can be wrapped and will not squeeze into the chest. Ultra-thin cups like French underwear are also suitable for girls with small breasts, which makes people feel light and comfortable.

Compared with the thin cup, the thickness of the medium cup is increased, and the thickness is generally 1cm ~ 3cm, which is more suitable for girls with A and B cups. This thickness can gently lift the small chest, improve the chest shape and shape the rounded chest contour. Moderate thickness will not make the chest feel stuffy, but can make the chest very comfortable.

Thick cups are generally more than 2 cm, mostly used for A cups, suitable for girls with small breasts. Because underwear is thick, it has the effect of gathering, which can create the illusion of big breasts. But the thick cup is too thick to be worn by people who pursue comfort. Wearing the wrong clothes will also make the chest feel obviously squeezed.

A cup with thin top and thick bottom is a cup with thin top and thick bottom. The thinnest part of the top is usually 0.8 cm, and the thickest part can reach 6 cm. The cup shape with a thin top and a thick bottom can lift the chest upwards, which is suitable for girls with small breasts and sagging breasts. Basically, except for the spherical chest shape, other chest shapes are suitable, because if you wear a ball, the thick part under the cup cover will squeeze the perfect chest shape, making the chest deformed and unhealthy.