Work out in comfort with a next-to-skin fit without the squeeze. Theyre ultra-light with stretch-woven fabric for totally unrestricted movement and an internal mesh liner helps moisture escape while adding breathability. Mesh side panels add ventilation materials wick sweat and dry fast and four-way stretch construction moves better in every direction. Anti-odor technology prevents the growth of odor-causing microbes. Encased elastic waistband with internal drawcord. Powermesh rear pocket. Reflective logos for greater visibility on low-light runs. 100% polyester.