75% Nylon, 25% Spandex Imported Buckle closure Hand wash only 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, or everyday bra. Beauty back bralette designed for low back dresses or blouses. Innovative adjustable single-button back design allows the strap to be positioned lower than a standard bra, down to 5.5 inches, creating a sleek low-back silhouette. Skin-friendly, seamless, and comfortable construction. Main fabric is 75% nylon and 25% spandex—lightweight and sweat-absorbing. Cup lining is 100% polyester, breathable and elastic. Bonded construction ensures a smooth, invisible finish. Soft, thin cup with 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's natural curves. A versatile convertible bra for every style. The wide U-shaped back design highlights the back and shoulders, making it an ideal choice for low-cut tops, backless dresses, and wedding attire. This backless bra is a wardrobe essential that supports a variety of fashionable outfits with ease and comfort.