Keep the heat in with this great base layer shirt by Ks Sport. Designed with the latest in activewear technology—such as moisture- fabric, an clean finish to keep odor at bay, and flexible 4-way stretch—you can be sure you'll be able to move however you'd like, even on the chilliest days. Form fitting, moves with you Mock neck collar Long sleeves 4-way stretch fabric Moisture Odor-resistant Contrast stitching Polyester/spandex Machine wash imported Our Expert Opinion Combine this warming base layer with any other items from our Ks Sport line of activewear line for the most in comfort engineering.