ZIPPER, NINE BUTTON AND INTERNAL BUCKLE TO PREVENT BURSTING; 2. THE WAIST IS FITTED WITH RUBBER, WITH SUPERPLASTICITY; 3. THE LACE DESIGN IS SEXY AND BEAUTIFUL TO THE OVERALL LOOK; 4. THE BUTT FITS RUBBER, BUTT LIFTING EFFECT IS OBVIOUS; 5. INDEPENDENT CUTTING OF BUTTOCKS, HIGH ELASTICITY, AND NO PRESSURE ON BUTTOCKS.