Hello, I personally suggest that vest underwear is more common at present because the size is only sml (small, medium and large) plus at most two xs and xl. It is easy to buy on a treasure, and the size is not so particular. However, their shortcoming is precisely their small size, so they will not 100% fit your chest shape, and there may be a situation where S is too crowded and M is empty.

My personal opinion is that vest underwear can be used as a supplementary type to relax at home on weekends. After all, it is very comfortable to wear. If you are not sure about the size, you can buy a slightly larger one. And if you pursue a certain shaping effect, or if you have to choose steel rings for big breasts, then bra underwear is still necessary.

Wear a sports bra if you exercise. Generally, girls with B cups or above will have obvious shaking feeling during exercise.

If you are really worried, you can try to wear a sports bra while exercising.

This depends on everyone's preferences. Vest underwear can be worn directly or buckled behind the back. Most vests and underwear in the market are mainly comfortable, and the shoulder straps are relatively wide, so it doesn't hurt to wear. However, the length of the shoulder strap cannot be adjusted, and some people with thick arms will feel uncomfortable. Underwear is mostly back button, three-breasted, four-breasted and even five-breasted. There are comfort type and adjustment type. The shoulder strap is thin and adjustable. By adjusting the length of the shoulder strap, underwear can fit the breast better. However, people with delicate skin can easily adjust to make their skin turn red. The most important thing is that everyone's chest shape is different. Just choose the underwear that suits you, whether it's a vest or a usual underwear style.

Underwear is too bound, which has an impact on chest health.

However, vest underwear without steel rings can not be supported for a long time, which will also lead to sagging breasts.