Abstract: This invention comprises a rigid, semi-rigid or flexible membrane upon which are located a plurality of raised projections or protuberances in a variety of possible geometric shapes. The membrane also has a plurality of vents or cut-outs which give stress relief for the membrane and act as air vents to provide ventilation for the comfort of the wearer. The device is adapted to be placed under the side panels of a woman's brassiere to aid lymphatic flow of the breast tissue lymphatic system by performing a massaging action and removing constriction on the axillary lymphatic vessels.