Every woman's figure is different, such as the same D cup, different bottom circumference, different chest types and different underwear suitable for wearing, so the toffee pie divides different chest types into three categories: disc chest, hemisphere chest and papaya chest? According to different chest shapes, a more suitable cup shape is designed to better fit the chest, so as to achieve a more stable support effect, effectively protect the chest during wearing, prevent injuries caused by excessive pulling, and avoid premature sagging of the chest and auxiliary milk extrusion caused by improper cup shape.

Butterfly's open-chest underwear has been upgraded to 4.0, and there are classic version 4.0, light version 4.0, and girls. Users have given feedback, and the upper body effect of the split chest 4.0 is really better, which is lighter and more breathable than the old version.