This is a uniform size underwear, suitable for most girls.

Sports bra, also known as sports bra, is a category classified according to "the specific function of bra". Therefore, as the name implies, sports bra is invented to prevent women's breasts from being hurt in sports and fitness.

A study by Dr. Scurr of the University of Portsmouth in the United Kingdom shows that the average person runs 1 mile, and the breast shakes 1.35 meters. The violent swing of a woman's chest may damage the elastic fibrous tissue (deep fascia &; Fibrous diaphragm, also known as Cooper's ligament), causes it to be permanently damaged, leading to sagging and deformation of the chest.

It has been a hundred years since the advent of ancient Rome, but its basic shape has not changed much. Ergonomics has not been widely used in the design and production of bras until recently. On the whole, compared with other types of clothing, the research of bra is in a backward state, and the size standard of bra is not perfect.