A corset refers to a woman's corset, which will affect her breathing. This is because wearing tight underwear or bra, the chest is tied tightly, which limits the movement of the chest and affects the normal breathing, especially during exercise and running.

Modern mainly refers to a kind of clothes worn by lesbians, which is used to tie the chest and achieve the effect of flat chest. The clothes used by COSPLAY and some athletes mostly appear in the form of underwear.

Styles are divided into vest, inner wear and T-shirt, and inner wear is divided into bust and whole body. According to the way of wearing, it can be divided into four types: hook type, velcro type, direct pullover type and zipper type.

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