Built for performance, the 2XU Compression Light Speed Front Zip Tri Suit features a 3D mesh structure of premium Italian SBR VENT through the upper body to deliver an ergonomically designed fit that provides exception aerodynamics. Powerful & lightweight PWX fabric with circular knit 360-degree stretch reduces muscle movement & prevents fatigue while Muscle Containment Stamping (MCS) traces the quadriceps & dissipates the load transfer on the knee joint when running. PWX VENT lower body provides support & improves airflow by almost 200% so you remain cool & well ventilated. Swiss COLDBLACK technology on the upper body & back reduce the absorption of heat rays & provides UV protection to keep you at optimal performance temperature. Designed with a TMF Light Speed Tri Chamois with a dual-layer 90 density 6mm foam combined with 140 density 3mm foam for maximum comfort & support. Finally, easy access rear envelope pockets provide convenient storage for your race-day essentials. Care Instructions Machine wash in cold water with like colours. Do not tumble dry. Hang to dry in a cool shady area away from sun. Do not use bleach, fabric softeners or dryer sheets. Do not iron.