Extraordinary airflow meets lightweight coverage. Enhanced with our most innovative cooling tech, Nike Aero-FIT, this smooth knit top offers peak breathability when your run heats up. Fit & Design: Reflective details Hood with drawcord lets you cinch up your perfect fit Not intended for use as Personal Protective Equipment (PPE) Nike Aero-FIT technology is designed for maximum breathability, inviting airflow against your skin in key areas to help you stay cool when your run heats up. Men's Shirts & Tops from the Nike brand.