The On Men's Performance-T Shirt is specially engineered for function and ease of movement, making this shirt the best running buddy. This shirt has a front panel with quick-drying properties along with high-tech polyester fabric that shields and protects, whereas the back has you covered by a highly breathable mesh fabric. You'll love the fully taped seams for added durability, anti-chafe technology, and 360° reflectivity that makes you easily seen in low light situations, perfect for afternoon/night runs. The On Men's Performance-T Shirt is the ultimate running T Shirt.