Clever Standford Sporty Thong 94% Cotton, 6% Spandex Machine wash in soft cycle. Do not use chlorine bleach. Do not iron. Do not dry in the sun. Incomparable quality and comfort without compromising style. The unstructured underwear patterns aid movement and become a second skin. Offers excellent support, ideal for both competitive or leisurely sport. High durability and retention of shape. Clever Moda Sizing: Small: 28-30" Medium: 32" Large: 34" X-Large: 36-38" (inches).