Run with the ultimate airflow. Enhanced with Nike's new Aero-Fit technology, this lightweight, engineered top offers a cooling sensation and peak breathability mile after mile. Fit & Design: Standard fit Raglan sleeves are designed to help reduce underarm chafing Jacquard knit fabric feels lightweight and breathable Side split hem helps allow for unrestricted movement Technology: Nike Aero-FIT technology is designed for maximum breathability, inviting airflow against your skin to help you stay cool when your run heats up Additional Details: Machine wash Imported