Miraclesuit Kirkland Signature Tankini Swimsuit Top, Look & Feel Slimmer! Body: 84% nylon, 16% spandex. Lining: 83% nylon, 17% spandex. Imported Innovative fabric, Miratex provides triple the holding power Constructed to shape and form the body without bulky linings Built-in soft cup bra 54% Spandex / 46% Nylon All over slimming control