Keeping you cool when running, the 2XU Aero Compression Tights feature PWX VENT panels that improve air flow by almost 200% to disperse heat, regulate your temperature & increase evaporation as you train. Delivering lightweight & flexibile support via PWX fabric with circulat knit 360-degree stretch to stabilise your muscles, increase blood circulation & reduce the risk of injury all while boosting your performance & speeding up recovery times. The drawstring waistband ensures a secure fit with a zip rear pocket providing bounce-free secure storage for phone, cards & keys. Finally, a reflective X logo on calf provides visibility in low-light conditions 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.