The jersey is made with a double-layer fabric that has an ultra-soft brushed inside for maximum warmth and a smooth, quick-drying outside. Stretch mesh panels on the back and under the arms provide strategic ventilation without compromising warmth. With 4-way stretch, the jersey moves with you in every movement, so nothing stops your swing. The material effectively wicks away sweat and dries quickly, so you can stay dry and comfortable throughout the round. The ergonomic design places seams away from high friction areas, and the high collar provides extra protection and warmth. The UA Comp Mock is designed to help you perform at your best, whatever the weather.