When you run in Nike Aero-FIT technology, you run with extraordinary airflow. Enhanced with our most innovative cooling tech, this lightweight top offers elevated breathability with every mile. Benefits: Nike Aero-FIT technology is designed for peak breathability, inviting extraordinary airflow against your skin to help you stay cool when your run heats up. A curved hem offers coverage without sacrificing freedom in your stride. Aero-FIT Cooling Tech: Nike Aero-FIT technology is designed for maximum breathability. It allows airflow against your skin to help you stay cool when your run heats up. Product details: Reflective design details. Not intended for use as personal protective equipment (PPE). 100% polyester. Machine wash. Imported