Rugged 93% polyester, 7% elastane ColdGear fabric
Patented negative grid interior traps hot air
Four-way stretch fabrication for maximum mobility
ArmourBlock antimicrobial technology fights odors
Signature Moisture Transport System wicks sweat
This isn't your grandpa's long underwear! The Under Armour Base 3.0 Long-Sleeve Crew Shirt delivers heavyweight protection in bitter cold conditions without weighing you down. Rugged 93% polyester, 7% elastane ColdGear fabric dries quickly to keep you light and comfortable. The patented negative grid interior traps hot air to provide superior warmth. Four-way stretch fabrication allows greater mobility and maintains its shape, while ArmourBlock anti-odor technology helps prevent the growth of odor-causing microbes. The Signature Moisture Transport System wicks sweat away from the body to keep you dry. Raglan sleeve construction provides a full range of motion in the arms for even greater comfort. Smooth flatlock stitching and ergonomic seam placement help reduce chafing and allow for easy layering. Fitted design. Imported.