Base Layer Tops

The Under Armour® Men’s Base 2.0 Crew Base Layer Shirt serves as your first layer of protection against the cold when you’re heading into the woods. Made with a polyester/elastane blend, the Base 2.0 shirt is fitted against your body and traps in heat to shield against the chill. coldgear® technology delivers warmth without the bulk so you can wear a shirt and jacket comfortably over the base layer. Next to skin protection that takes your performance to the next level is here with 2.0 Base Layer.

UA Base 3.0 is built for very cold weather and moderate activity. It uses a unique pattern that's designed to trap heat without adding bulk. Think long underwear, revamped for today's top athletes.