Speedo Men's Endurance+ Launch Splice Brief Swimsuit 50% Polyester, 50% Other Fibers Imported Speedo longest lasting and best selling training suit fabric Chlorine resistant and superior color retention Unique four-way stretch technology maintains body hugging shape and soft comfort longer than conventional swimwear 50 percent polyester/50 percent PBT Speedo exclusive Endurance+ is our longest lasting and bestselling fabric to give you more value for your money Resists bagging, sagging, and the effects of suntan lotion, skin oils, and chlorine Inner drawstring waist and four-way stretch technology provides a body hugging fit, great shape retention, and soft comfort Traditional performance brief with 3 inch side panel and inner drawstring waist Made by speedo, the world's no 1 swim brand