When practicing yoga, you can take off your underwear, or you can choose to wear sports bra, chest patch and chest pad. Don't wear thick underwear with rims to practice. Because in yoga and pilates, many movements are done on the ground. When we crawl or lie on our back on the mat, the chest is likely to be squeezed out from anywhere and leak out, so that the steel ring may get stuck in some glands in the chest, and there are many squeezing and twisting actions, which will also press any part of our chest, which is not suitable for pressing the chest for a long time.