Fit and Design: Regular fit running shirt Soft and smooth fabric lets you move freely on every run Collar is designed with fewer seams for a smooth feel Easily adjusts at the neck and sleeves so you can stay comfortable as you heat up or cool down 1/2 zip design lets you adjust your airflow and coverage Thumbholes at the sleeves helps cover your hands in a contoured design for extra warmth when you need it Technology: Sweat-wicking Nike® Dri-FIT fabric helps keep you cool and dry Reflective elements enhance visibility in low-light conditions Additional Details: Made with at least 75% recycled polyester fibers Machine wash Not intended for use as personal protective equipment (PPE)