Speedo Big Boys' Youth Circuit Board Endurance+ Jammer Swimsuit 50% polyester/50% pbt 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 Jammer styling provides more coverage and greater compression Made by Speedo, the world's #1 swim brand