These women's leggings with HeatGear® technology are extremely light and soft. The fabric wicks sweat well and dries quickly. 4-Way Stretch allows movement in all directions. Increased number of laser perforations improves airflow. They have an elastic waistband with internal drawstring and side pockets. Reflective strips increase visibility in low light. Odor control technology minimizes odors, which is ideal especially when running.