Speedo Men's Endurance Lite Quark Splice Jammer Swimsuit 51% Other Fibers, 49% Polyester Imported 10 percent lighter weight fabric than Speedo endurance+ fabric that won't weigh you down in the water Resists sagging, bagging, and fading 51 percent PBT/49 percent polyester All the long lasting performance qualities of our endurance+ fabric in a 10 percentage lighter weight perfect for lap swimming and training Resists bagging, sagging, and the effects of suntan lotion, skin oils, and chlorine Drawstring inner waist and unique flat lock stitching for superior fit and feel Four way stretch jammer styling provides more coverage and greater compression Made by speedo, the world's premier aquatics brand