The hollowed-out underwear has a strong gathering effect (for small chests, wear 2 Lisheng cups), no steel ring design (there is no sense of restraint at the same time when gathered), and a hollow pattern (full of girlish feelings). The bottom is thick and the top is thin, fits the body shape, widens the side ratio, perfectly wraps the underarm fat, makes it shift into the cup and lock firmly. The inside adopts high-tech oxygen, breathable design, and uses magic honeycomb as a carrier to give breasts healthy and comfortable massage care through close contact with the skin, awakening women's potential vitality and sexy.