80% Nylon, 20% SpandexImportedBuckle closureHand Wash Only1). MULTIWAY SEXY TRIANGLE CUP BRAS FOR TEEN GIRLS & WOMEN - Removable, adjustable and convertible straps. Can be worn as wedding bras, T-shirt bras, low back bras, backless bras, halter bras, clear strapless bras, invisible bras or push-up bras.2). DEEP-V NECK & BEAUTY BACK BRALETTE FOR LOW BACK DRESS- An innovative adjustable back single-button design strap creates a low-back silhouette. Bras back strap can be pulled down lower than normal bra to 5.5 inches. invisible under tops or dresses.3). SKIN-FRIENDLY, SEAMLESS, COMFORTABLE BRAS - The bras flank fabric is made of 77% Nylon, 23%Spandex, lightweight and sweat-absorbing. Cup lining is made of 100% Polyester,; its breathable and elastic.80% Nylon, 20% SpandexImportedBuckle closureHand Wash Only1). MULTIWAY SEXY TRIANGLE CUP BRAS FOR TEEN GIRLS & WOMEN - Removable, adjustable and convertible straps. Can be worn as wedding bras, T-shirt bras, low back bras, backless bras, halter bras, clear strapless bras, invisible bras or push-up bras.2). DEEP-V NECK & BEAUTY BACK BRALETTE FOR LOW BACK DRESS- An innovative adjustable back single-button design strap creates a low-back silhouette. Bras back strap can be pulled down lower than normal bra to 5.5 inches. invisible under tops or dresses.3). SKIN-FRIENDLY, SEAMLESS, COMFORTABLE BRAS - The bras flank fabric is made of 77% Nylon, 23%Spandex, lightweight and sweat-absorbing. Cup lining is made of 100% Polyester,; its breathable and elastic.