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