Many girls do not know what material to choose when choosing underwear. The material of the underwear has a large degree of determinative effect on the functionality of the underwear. As our most personal clothes, the material of the underwear also relates to the comfort of the underwear when worn. Generally more comfortable underwear materials are made of cotton, which will fit the skin better and also have better breathability. The second is that underwear selection is best to go to a physical store to buy, you can choose the size that suits you best after you try it yourself. An inappropriate size will cause more damage to the chest.