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, wedding bra, or everyday bra. BEAUTY BACK BRALETTE FOR LOW BACK DRESS OR BLOUSE – Innovative adjustable back single-button design allows the strap to be pulled down lower than a standard bra, creating a low-back silhouette. The back strap can be adjusted down to 5.5 inches. SKIN-FRIENDLY, SEAMLESS, COMFORTABLE BRA – The bra's outer fabric is made of 75% nylon and 25% spandex, lightweight and sweat-absorbing. Cup lining is made of 100% polyester, breathable and elastic. BONDING CRAFT, SMOOTH & INVISIBLE, BRA STAYS IN PLACE – Soft, thin cup; 1 cm double-sided tension straps for added durability; Underwire made of soft wire material that maintains shape after washing. Designed to fit smoothly along your body's curves. A CONVERTIBLE BRA FOR EVERY STYLE – 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 outfits thanks to its versatile design.