Ultra-light, stretch-woven fabric delivers superior mobility .Breathable mesh calf & side panels are ultra-durable & delivers superior ventilation .4-way stretch construction moves better in every direction .Material wicks sweat & dries really fast .Anti-odor technology prevents the growth of odor-causing microbes .Encased elastic waistband with internal drawcord .Hand pockets with a right-side power-mesh internal pocket for your phone .Reflective logos & print on side panels for greater visibility on low-light runs .7" leg zips .