Suggest you buying the Size according to your cup.The Halter String Triangle Bikini Sets is adjustable at neck, back, bottom, whatever your size, you can fit it. 82% Nylon, 18% Spandex Tie closure Machine Wash 82% nylon and 18% spandex.Smooth fabric, stretchy, pro-skin, durable, makes it easy and very comfortable to wear. Fashion brazilian cut 2 piece swimsuit feature halter bikini top, tie at neck and back,the removable padded up bras, offers great support and enhance your shape, brings you closer fitting, ultra chic and adorable. String Bikini bathing suits for women feature triangle bikini bottoms, brings you glamour. Bright colors, eye-catching, making you look amazing in beach, swimming pool, Hawaii, Honeymoon, etc. This is US size, please refer size chart for details in the part.Great gift to your lovers, friends or yourself.