A hands-free breast pump system is disclosed. A breast shield having an adhesive inner surface for adhering to a woman's breast is disclosed. An adapter is connected to the breast shield for transferring a vacuum generated by a pump to the breast. The adapter also allows milk expressed from the breast to drain from the adapter to a container. The breast shield adheres to the breast and supports the weight of the adapter and collector bottle without separate adhesives, gels, straps, or specially designed support bras. The adhesive breast shield allows for hand-free expression of milk.
