Speedo Women's Endurance Swim Skirt 50% Polyester/50% Persistent Bioaccumulative Toxin 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 Internal brief with core compression fabric panel that trims and slims Made by speedo, the world's #1 swim brand