The 2XU WOMEN'S COMP TRISUIT utilizes a chlorine resistant lycra fiber called SBR Skin-X to help keep your garment fitting like new for longer. With excellent stretch and recovery property, the fabric in this garment works with your body movement while retaining its shape. The polyamide yarn enhances moisture management capability as you transition from one sport to the next. Another fabric used is the Sensor Mesh-X which is nylon lycra fiber with high filament hydrophobic nylon yarn and optimal air flow engineering, sensor mesh-x represents the ultimate in moisture management. The most important aspect of this garment is the 2XU exclusive SBR fleece chamois which uses a micro-filament polyester yarn. 2XU has developed a fleece with enough padding for the bike while still remaining discreet for the swim and run. Using polyester yarns with hydrophobic properties, this fabric will remain dry through each event. This garment is abrasion resistant and built to last through demands of swim/bike/run while still giving you unparalleled comfort.