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, strapless bra, open back bra, low-cut bra, wedding bra, or everyday bra. 2). Bralette with low-back design ideal for low-back dresses or blouses. Adjustable back strap with single-button closure allows the strap to be positioned lower than a standard bra, down to 5.5 inches, creating a smooth low-back silhouette. 3). Skin-friendly, seamless, and comfortable. Main fabric is 75% nylon and 25% spandexlightweight and sweat-absorbing. Cup lining is 100% polyester; breathable and elastic. 4). Bonded construction for a smooth, invisible finish. Soft, thin cup. 1 cm double-sided tension straps for added durability. Underwire made of soft flexible material that maintains shape after washing. Designed to stay in place and conform comfortably to your body. 5). A versatile convertible bra for every outfit. The wide U-shaped back design highlights your back and shoulders. Ideal for pairing with tops, low-cut, and backless dresses. This backless bra is a wardrobe essential that supports a variety of fashionable looks. Designed to be worn with many different styles thanks to its flexible design.