Of course, a sports bra is good. First of all, the sports bra has good elasticity and will not shift during exercise, resulting in chest deformation. Secondly, the sports bra has certain vibration support and shockproof function to prevent sagging breasts. Many ordinary underwear hold the chest high, beautifying the chest shape, but the higher the chest holds, the more it shakes up and down during exercise. In fact, there is a ligament above our chest, just like a spring rope. If we pull too often, the elasticity will be bad, leading to sagging breasts. Thirdly, the breathability of sports bra is much better than ordinary underwear. If you need to wear fashion, it is better to wear ordinary underwear, which can improve the chest position and highlight the figure and curve. According to the standard, both kinds of underwear are needed.