It can be said that the vast majority of underwear that claims to have slimming effect is deceptive, and at most it is a little plastic. Expensive underwear is relatively comfortable to wear, but cheap underwear is not available. To put it bluntly, it is to wrap the meat in clothes and make yourself look "slim and thin".
It is recommended not to use it. Try not to use it. Long-term use is oppressive to blood vessels and harmful to the body. You can adjust your weight and lose weight through diet and exercise!
Good luck!