1, spinning bike: choose underwear with good air permeability and flat feet.
It is more appropriate to choose flat-footed underwear with good air permeability, because this sport consumes a lot of energy and the body temperature rises quickly. The spinning instructor will choose underwear with pads on the inner thighs, which can greatly reduce the discomfort caused by the close contact between thighs and pads during exercise.
2, yoga, Pilates: You should choose loose and elastic underwear.
If the amount of exercise such as yoga or pilates is relatively large, but the movement is slow, perspiration and ventilation are no longer the key concerns, and how loose and elastic underwear becomes particularly important. Otherwise, it won't be so easy to make a difficult shape. Imagine how painful it would be for a bound hairy crab to do yoga.