The patented negative grid traps ridiculous warmth without adding excess weight. Under Armour's Base 3.0 is heavyweight protection in a lightweight layer. It provides superior warmth for times when you know you'll need it.
Fitted: Next-to-skin without the squeeze.
UA Base 3.0 is built to fight the bitter cold without weighing you down
Soft, brushed negative grid interior traps hot air, providing superior warmth
4-way stretch fabrication allows greater mobility in any direction
Moisture Transport System wicks sweat away from the body
Anti-Odor technology prevents the growth of odor causing microbes
7.0 oz. Polyester/Elastane