The Arc?teryx Motus Crew SS is an athletic and lightweight running shirt. It is made of a soft fabric that provides excellent next-to-skin comfort. Plus, it is quick-drying and stretchy as well. Arc?teryx developed the Motus Crew SS specifically for trail running. But, it can be used for other physical activities that call for a reliable and high-quality shirt. The DAO Finish (Durable Anti Odour Finish) makes the shirt durably odour-resistant. Reflective elements increase visibility in twilight and darkness.