Abstract: A silicone gel bra includes two silicone gel bra cups and a connector. The silicone gel bra cups are formed with a volume of silicone gel shaped in a mold. Each silicone gel bra cup has an inside surface. A portion of the inside surface or the entire inside surface is coated with a reusable adhesive layer. The silicone gel bra cups each have an extension portion. The extension portion is inserted through a loop of the connector, and then reversely folded to be adhered to the relative bra cup to constitute the silicone gel bra. The silicone gel bra cups have a plurality of air apertures to provide a ventilation function for the breast. The silicone gel material of the silicone gel bra cups can be mixed with a forming agent to form a silicone gel form material with air bubbles to constitute the silicone gel bra cups.