Ideal for swim training and regular use. Jammer styling offers more coverage to the legs. Speedo’s exclusive Endurance+ is our longest lasting and best selling training suit fabric. Endurance+ is 100% chlorine resistant fabric designed to lasts 20 times longer than conventional swimwear fabrics. Four-Way Stretch technology also provides a body-hugging fit, great shape retention and soft comfort. Low moisture absorption and quick drying. Front gusset. Inner drawcord t waist for secure fit. Fabric: 50% Polyester/50% PBT.