The undercoat can be worn directly on the body, and then an underwear (such as a bra) can be worn inside, and then it can be worn with any close-fitting clothes. It's usually called primer.

The base coat is a close-fitting T-shirt or sweater, which can be matched with any coat. A base coat is a kind of clothes with beautiful colors, which can be worn under a sweater or suit. Leggings are the kind of tight pants that wear like trousers with a long coat. The original intention of bottoming is the underwear inside the coat, which is extended to the clothes inside the coat. So there are branches such as "bottoming sweater" and "bottoming sweater".

Extended data:

Characteristics of primer

1, elastic

It has passed the pressure test in the material testing laboratory and is a high quality standard. Body shaping clothes improve the elasticity of underwear by adding elastic yarn, and maintain and adjust the size and shape of human body by traction.

Step 2 carve curves

When knitting, handle the local tightness according to the ergonomic three-dimensional knitting method, so that the shape of the body-shaping bottoming shirt conforms to the human body curve, and increase the contraction force in individual parts, so as to achieve the effect of correcting the body shape and body shaping, better conform to the human body curve and create a perfect body.

3, no sense of bondage

Wearing a corset that is too tight for a long time will lead to poor blood circulation, numbness in hands and feet, and even affect normal breathing. Lung tissue will not be fully stretched due to microcirculation disturbance, which will hinder oxygen supply to the whole body and easily lead to brain hypoxia. Body-shaping bottoming shirt/trousers have passed the physical test and stress test, and fully meet the health and high quality standards. They are ergonomically three-dimensional woven, with moderate elasticity and no sense of bondage and boredom.

Baidu encyclopedia-bottoming clothes