Material: 80% Nylon, 20% Spandex, adhesive wings: 100% Silicone. Extremely comfortable stick on bra with smooth fabric, absolutely breathable invisible bra gives an ultimate backless strapless look. Special Deep U Plunge Bra Design: This self adhesive bra stays secure but freely with soft feeling, it forms perfect breast shape with an awesome and sexy curve. Stylish adhesive bra completes any sexy dress style. Fashionable Sticky Bra: This backless bra is to be adhesive directly to the skin, leaving no trace on skin after removing,?it holds the breasts in that making fashion style so much easier, whilst keeping a variety of sexy. A Staple in any Woman??s Wardrobe: Backless strapless bra is absolutely perfect for wedding dress, low cut outfits, low back dress like prom and homecoming dress or any formal evening dresses, it??s the best option for photo shoots and red carpet moments alike. PLEASE KINDLY MEASURE YOUR SIZES BEFORE PURCHASING, nubra is normally true size as regular bra, if you are not sure which cup fits most, please be free to leave us message before order.??Cup A??: 70A(32A) 70B(32B) 75A(34A) 80A(36A). ??Cup B??: 70C(32C) 75B(34B) 80B(36B) 85A(38A). ??Cup C??: 85B(38B) 75C(34C) 80C(36C) 70D(32D). ??Cup D??: 85C(38C) 75D(34D) 80D(36D) 85D(38D).