It depends on the size of your breasts. If your bust is bigger, buy a smaller size underwear, because a smaller size will be tighter, and big breasts need more fixing and support. Pay attention to the bottom circumference of the chest. Women with large bottoms should also buy smaller underwear.

The first principle of choosing underwear is to choose according to the intensity/type of exercise. Secondly, the size of the cup, the bigger the cup, the greater the support needed. The third important selection criterion is that the clothes should not be too tight, and the feeling of pressing the chest cannot be produced.

Underwear is more elastic, shock-proof, fixable and convenient for limbs to stretch freely. Wearing it during running can prevent the chest from being affected by vibration, and can also prevent the chest from shaking and uncomfortable during running. Moreover, the sports bra has better sweat absorption and breathability, which can avoid skin discomfort caused by excessive damp heat caused by sweating during running.

Clean underwear should be stacked neatly, not crumpled up. Prevent the cup from deforming or losing its elasticity. It's best to put it in a ball bag separately and keep it clean before changing it. Underwear should not be mixed with other clothes in the washing machine to prevent cross-infection of germs carried by dirty clothes and avoid deformation and dyeing.