Tired of that stiff, distracted feeling you get when you're out running in the cold? The Under Armour Men's ColdGear Armour Fitted Crew is a baselayer that keeps you warm and dry without being bulky or riding up, so you can stay focused all season long. Dual-layer fabric with an ultra-warm, brushed interior and a smooth, fast-drying exterior. Stretch-mesh back and underarm panels provide strategic ventilation without sacrificing warmth