This Callaway Apparel long sleeve is designed to elevate your performance. The men's base layer features a quarter zip for temperature adjustments and Opti-Dri™ moisture-wicking technology to keep you feeling dry and comfortable while golfing. For added convenience and temperature control, it has a mock neck collar and long sleeves to lock in warmth when it is cool on the course. For a stylish touch, this golf undershirt is decorated with color blocking, making it both functional and visually appealing.