Silicone Breast Prosthetics | I & K Cup | Half-BodyThe Chest That Stops the Show. When you need a silhouette that commands the room, these half body silicone breast prosthetics deliver. Crafted from food grade silicone with a natural weight, warmth, and movement, they sit flush against your torso for a seamlessly convincing look whether you're performing on stage, walking a pageant, or living your best life off it. Available in I and K cup sizes, with silicone or cotton filling options, and three skin