You must wear underwear. But when I go to the gym, I wear a set of quick-drying clothes and pants, and I also wear that kind of seamless and tight modal underwear. First, comfortable, close-fitting, sweat-absorbent, no sense of bondage. Second, the quick-drying clothes and trousers worn in the gym are thin and tight. Because of its strong encapsulation during exercise, it can relieve blood diastolic pressure, so that blood will not flow back and be released quickly, leading to rapid myocardial infarction of heart blood vessels. Of course, this is my personal understanding. In addition, if you don't wear underwear in such a thin fitness suit, you will directly have tendon marks, which is very embarrassing. It turns out that the girl's special physiological structure is there. Let the other gym people think about it. To sum up, you must wear close-fitting and comfortable underwear. But it's best not to go to the gym during the physiological period, have a good rest at home and then go. Love yourself and protect yourself is the greatest safety and health. Sports tights are made of special fabrics, so they don't feel bound when worn, and they feel light when exercised, which can also reduce muscle fatigue. When running, the muscles on the legs will shake violently. After wearing tights, it will reduce muscle jitter, and also reduce the energy consumption of the body to a certain extent and maintain physical strength.

Tights have a good sweat absorption effect and can also have the effect of quick drying. In the process of running, the surface structure of tights is larger than that of ordinary pants, and the water evaporates quickly, so sweat soon and it is more comfortable to wear.