SPEEDO Sonic Spliced Endurance Jammer Youth SPEEDO Sonic Spliced Endurance Jammer SPEEDO Sonic Spliced Endurance Male Jammer SPEEDO Sonic Spliced Male Jammer * Sonic splice down side of legs. * Jammer styling offers more coverage to the legs./li> * Speedou00ae Endurance is 100% chlorine resistant fabric that lasts 20 times longer than ordinary spandex fabrics. * Speedou00ae Endurance fabric retains color 20 times longer than conventional swimwear and features softer, lighter fabric with 4-way stretch technology for a comfortable fit. * Bar tack reinforcements at stress points. * Front liner. * Inside non-slip drawstring at waist for secure fit * Fabric: 50% Polyester/50% PBT.