75% Nylon, 25% Spandex Imported Buckles Are Hand Washable Only1). Multi-Way Deep U-Shaped Deep V Backless Bra - Convertible Straps Can Be Used As Low V Bra, Low Back Bra, Backless Bra, Halter Bra, Cross Back Bra, Invisible Bra, Clear Strapless Bra, Backless Bra , Plunging Bras, Wedding Bras, And Everyday Bras. 2). Back Bra For Low-Back Dresses Or Shirts - Innovative Adjustable Single-Button Back Straps Create A Low-Back Silhouette. Bra Back Straps Can Be Pulled Down To 5.5 Inches Lower Than A Regular Bra. 3). Skin-Friendly, Seamless, Comfortable Bra - The Side Fabric Of The Bra Is Made Of 75% Nylon, 25% Spandex, Which Is Lightweight And Sweat-Absorbent. Cup Lining Is Made Of 100% Polyester; It'S Breathable And Stretchy. 4). Using Adhesive Technology, It Is Smooth And Invisible, And The Bra Is Fixed In Place - Soft And Thin Cup; 1Cm Double-Sided Tension Strap Is More Durable; The Steel Ring Is Made Of Soft Steel Wire And Will Not Deform After Washing. Perfectly Fits Your Body Curves. 5). Convertible Bra Suitable For All Styles - Large U-Shaped Back Design Fully Shows Off Your Beautiful Back And Shoulders. Perfectly Matched With Tops And Low-Cut Backless Dresses To Show Off Your Sexy And Charming Back. Backless Bras Are A Must-Have In Your Wardrobe And Can Be Worn In A Variety Of Fashion Styles. These Innovative Bras Can Be Paired With Almost Any Outfit Thanks To Their Versatile Construction.