The self adhesive Insta Bra has reusable adhesive backing so it adheres to your body for a perfect fit. Separate cups allow the body maximum flexibility and movement. It is to be used for true cup sizes for strapless dresses and low backed tops. Seamless and invisible under clothing, it is ideal for formal wear. The silicone bra cups give you a natural feel and look.Get that lift you always wanted.One Size Great for formal wear or casual wear Fits A, B, C cup Seamless and invisible under clothing Great for summer use with those spaghetti strap shirts. Hand wash easily.