Speedo Solid Endurance + Thin Strap 50% Polyester, 50% Pbt Imported Speedo exclusive endurance+ polyester fabric lasts 20 times longer to give you more value for your money Resists bagging, sagging, and the effects of suntan lotion, skin oils, and chlorine Four-way stretch technology provides a body hugging fit, great shape retention, and soft comfort Our skimpiest fit thin strap back style for less coverage with secure comfort Made by speedo, the world's 1 swim brand