Feel at ease. The intelligent seams of the On Running Performance-T men's running t-shirt and the overall fit are designed to work with the movement of your body. No chafing. No distractions. It moves with you. Its lightweight and breathable fabric features DryTecTM technology, meaning it's not only breathable, but dries quickly, too. Furthermore, this t-shirt features reflective details for enhanced visibility on your evening runs. Ignite the human spirit through movement: that's the mission of ON community. Expect the best from your running gear.