Add that extra layer of warmth to your winter training gear with the Under Armour CG Armour Comp Mock. This base layer is made from dual-layer fabric that keeps you ultra-warm and ready for anything. The four-way stretch construction means that you can keep moving freely while the stretch-mesh back keeps you ventilated when you need it the most. Under Armour CG Armour Comp Mock features: The material wicks sweat and dry really fast to add comfort. The anti-odor technology prevents the growth of odor-causing microbes. The mock neck construction offers added coverage and warmth. The underarm panels provide ventilation without sacrificing warmth. 87% polyester/13% elastane. Imported.