What you want to ask is whether the essential oil in the gold standard vest underwear is good or not. Easy to use. The essential oil in Jinbiao vest underwear is a kind of natural vegetable oil, which will fit the chest more easily than sponge cup, so that the cup of underwear can better support the chest, and the force on the cup will be more uniform, and it can also play a massage role, so it is very easy to use.