Yes, bare underwear is a kind of recovery bra with medical device certificate, which is very helpful to improve sagging breasts. You can see the improvement of chest L-line by wearing bare frame. After wearing it correctly for a period of time, even if you take off your bra, you can see that the L-line has been improved, the sagging chest has been repaired, and the chest has become tall and firm, achieving the effect of reshaping the chest of a 90-degree firm girl. I have been wearing a bare chest frame since I gave birth, and the chest recovery effect is really good.