Speedo Big Girls'  Circular Motion Butterfly Back Tankini Swimsuit 80% Nylon/20% Lycra Imported Xtra life lycra fabric lasts 5 to 10 times longer to give you more value for your money Resists bagging, sagging, and the effects of suntan lotion, skin oils, and chlorine No wedgie worries silicone gripper at leg openings for stay put coverage Sporty thin strap racerback styling for an improved fit and secure comfort Made by speedo, the world's number 1 swim brand