Yixin comfortable functional underwear recommended. The production scale of the brand is very wide, even F cups are available, and there are outlets in Chongqing. Yixin products are made of advanced fabrics such as Japanese water drop fabric, Korean silk, silk protein and deep-sea salmon oil, and functional materials such as far-infrared antibacterial function, silk protein and deep-sea salmon oil are applied to the products, which have strong anti-injury ability, do not go out of shape, effectively lift and gather the chest, prevent external expansion, regulate back fat and store underarm fat.