This women's t-shirt is made from lightweight Iso-Chill fabric that wicks heat away from the body and keeps you cool to the touch. 4-Way Stretch technology allows the material to move better in every direction. The t-shirt dries quickly, wicks sweat and has UPF 30 for UV protection. Laser perforations improve airflow and reflective elements increase visibility when running in low visibility. Odor-eliminating technology reduces odor.