Expert advice: Women should re-apply every 3-6 months and change the appropriate underwear according to their own stage changes. Even if care is taken, the average life expectancy of a piece of underwear should not exceed 10 months. Regular updates are a prerequisite for health. Why do you need to change new underwear after 3-6 months? Garment Rivets,Jean Button Rivets,Custom Button Rivet,Jean Buttons And Rivets Guangzhou Sanko Button Co Ltd , https://www.skbutton.com
a new bought underwear
3-6 months to say byebye
Do you think it is a waste?
NO, in fact, underwear is a consumable. You don't consume it, it will consume your health. 
When you put on a new underwear, it fits well with your body and bust. After a long period of wearing and washing, the elastic drop cup, shoulder strap and side ratio are all deformed. If you continue to wear it, you will Causing empty cups and even causing chest deformation