When the breast just develops, it starts from a nucleus and the breast begins to develop, and everyone will feel pain.
We should avoid squeezing and collision in this matter.
Put on a vest first.
When you are old, you feel that you are falling.
You start to accumulate fat.
At that time, if you wear a bra, you won't feel any pain.
But also good for the shape of the chest.
I hope it will help you and I hope it will be adopted.