Men's On® Core Long-T : The On Core Long-T is a lightweight men's running long sleeve designed for cool-weather training, everyday runs, and easy layering. It's the type of versatile piece runners rely on when temperatures dip but a heavier jacket isn't necessary.The lightweight performance fabric feels soft against the skin while helping manage moisture during your run. This helps keep sweat from building up so you stay comfortable whether you're heading out for an easy recovery run or picking up the pace during a workout.A streamlined fit allows natural arm swing and stride movement without extra fabric getting in the way. The breathable construction also makes this long sleeve a great layering piece under a vest or running jacket when conditions get colder.If you want a dependable men's long sleeve running shirt for cool-weather miles, the On Core Long-T offers lightweight comfort that works across seasons.