NOOD Game Changer Lift & Shape Bra provides perfect and secure coverage for that backless, strapless, or ultra-plunge dress. NOOD Game Changer Lift & Shape one-time bras are made from a sustainable hemp fabric that uses technology invented for athletes designed specifically for your boobs. It will not come off with sweat due to the breathable hemp fabric fibers and unique adhesive application technology that allows sweat and air to evaporate. The adhesive is heat activated and fully bonds to the skin after 20-30 minutes. Refer to NOOD sizing chart for the cup size that will best fit you. This product does the job well. Please note that if you are sensitive to adhesives, acrylic, elastane or similar products such as band-aids (plasters), you should not use NOOD adhesive products. Be sure to follow ALL details and directions before using NOOD adhesive products. Be aware that NOOD adhesive products are waterproof and MUST be removed with oil or medical tape remover (baby oil & coconut oil work well). Saturate the entire surface area of the tape in oil, covering the fabric area completely, and leave for at least 5 minutes. The oil will help dissolve the adhesive and prevent any pulling of the skin during removal.