75% Nylon, 25% Spandex Imported Buckle closure Hand Wash Only 1). MULTI-WAY DEEP U SHAPED PLUNGE BACKLESS BRA – Convertible straps can be worn as a low plunge bra, low back bra, backless bra, halter bra, criss-cross back bra, invisible bras, clear strapless bras, open back bra, low cut bra, wedding bras, or everyday bra. 2). BEAUTY BACK BRALETTE FOR LOW BACK DRESS OR BLOUSE – An innovative adjustable back single-button design strap creates a low-back silhouette. Bra back strap can be pulled down lower than a normal bra to 5.5 inches. 3). SKIN-FRIENDLY, SEAMLESS, COMFORTABLE BRAS – The bra fabric is made of 75% Nylon, 25% Spandex, lightweight and sweat-absorbing. Cup lining is made of 100% Polyester; breathable and elastic. 4). USE BONDING CRAFT, SMOOTH & INVISIBLE, BRA STAYS IN PLACE – Soft thin cup; 1CM double-sided tension straps for durability; Underwire made of soft wire material, maintains shape after washing. Perfect fit for your body curve. 5). A CONVERTIBLE BRA FOR EVERY STYLE – The big U-shaped design of the back fully shows your beautiful back and shoulders. Perfect partner to tops, low-cut and backless dresses that highlight your elegant back. The backless bra is a wardrobe essential that makes wearing all kinds of fashion possible. These innovative bras can be worn with practically any outfit, thanks to their versatile construction.