Abstract: The present invention proposes a modified falsie structure, which comprises a container made of waterproof and flexible material. Fluid and a plurality of hollow microspheres are filled in the container. Cloth is joined on the outer surface of the container by glue, heat melting, or sewing. The container and the cloth are of circular arc shape with concave arc edges. The concave arc edges can be bent to get close to form a three-dimensional bust form. The center of the falsie can form a projecting shape and its rigidity can be enhanced so that it will not be easily deformed. Thereby the falsie of the present invention can enhance the appearance of the breasts of the user for a long time when directly placed in the brassiere. Moreover, the breasts of the user can be uniformly pressured to achieve better feeling and comfort.