If you're looking for the ideal base layer for fall and winter running, look no further. Made from Polartec’s lightweight wool blend, Flyout helps sweat move up and away, regulating your temperature no matter the season. A semi-fitted silhouette with a classic crewneck and a hemline that skims the hips, the Flyout Wool Long Sleeve also features our signature side seam design for a contoured fit. Thumbholes and a watch window round out the extra-special details that come together to build a high-performing, hardworking style that will go the distance with you.