Abstract: Dress inserts for smoothing the contour lines of dresses improving the appearance in the bosom area and an improved manufacturing method therefor comprising the use of three cut pieces--an outer, liner, an inner lining smaller than the outer lining, and a foam padding layer which is sewn as a unit to and is sandwiched between the inner and outer linings, the method of manufacturing avoiding the need for any trimming step due to the overlapping of too much material. All three pieces have a general oval shape, with "left" and "right" versions begin mirror images of each other, with a triangular or pie shaped section cut out of each of the ovals, so that, when the two diverging edges created by removal of the slice are connected, a natural cone-shape is produced. Because the inner lining is smaller, it supports and raises the outer lining, with the padding providing for correct contouring.