75% Nylon, 25% Spandex Imported Buckle closure Hand Wash Only Multi-way deep U-shaped plunge backless bra — convertible straps allow styling 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. Adjustable back single-button strap design creates a low-back silhouette; back strap can be adjusted down to 5.5 inches. Skin-friendly, seamless, comfortable bra — side fabric is 75% Nylon, 25% Spandex; lightweight and moisture-wicking. Cup lining is 100% Polyester; breathable and stretchy. Bonded construction for smooth, invisible fit; soft thin cups; 1 cm double-sided tension straps for durability; soft underwire that retains shape after washing. Designed for a flattering fit. U-shaped back design highlights the back and shoulders. Ideal for tops, low-cut dresses, and backless styles. A versatile addition to any wardrobe.