Speedo Endurance fabric, a new generation of durability and comfort exclusive to Speedo®. Speedo Endurance is highly resistant to fading, stretching, and degradation, even after repeated exposure to chlorine, bromine, oils, or body lotions. Fabric is quick-drying, has superior shape retention, and is 20 times more color resistant than standard swimwear fabric making this ideal for swim training and regular use. Fabric: 60% Polyester/40% PBT. Import.