The Under Armour EVO Coldgear Gameday Men's Compression Mock features a brushback knit fabrication to trap heat and enhance warmth. Several other factors enhance performance in the cold weather, including: a silicone gripper at the hem to prevent the shirt from riding up and letting cold air in and UA's Superior Moisture Transport system. The transport system keeps the athlete dry and comfortable while flatlock seams and a raglan sleeve construction increases mobility. The Under Armour EVO Coldgear Gameday Men's Compression Mock is essential to comfort and performance in cold weather.