Abstract: The front section of this garment is made of silky, stretch material sewn to a cotton backing that is split so that prosthesis can be inserted. The cup is attached to an adjustable bottom strap and an adjustable shoulder strap. The bottom strap circles the area of the body just under the breast. It can have an adjustment on two sides (right and left)—the side nearest the cup only, or on both that side and the opposite side. The breast sling could also be made without mechanical adjustments on the bottom strap and simply be made in sizes small, medium and large. A thicker strap at the bottom of the cup gives extra support to the breast. The single cup is designed for women who have had mastectomies, and the cup can be made for the right or left side. Additionally, it can be turned inside out and worn on the remaining breast by women who want such support while sleeping.