The Under Armour Base 2.0 Long-Sleeve Crew Shirt boasts highly versatile, midweight protection for cold-weather conditions and a variety of activity levels. Soft yet rugged ColdGear fabric – a 95% polyester, 5% elastane blend – is treated with an ArmourBlock antimicrobial finish to help reduce odors, ensuring that you stay fresher longer. The soft, brushed negative grid interior traps hot air to provide exceptional warmth. Four-way stretch fabrication offers increased freedom of movement and maintains its shape. The Signature Moisture Transport System wicks sweat away from the body to keep you comfortably dry. Ergonomic flatlock seams help reduce chafing and allow for easy layering. This essential baselayer top features a classic crew-neck collar, raglan sleeve construction, and a slight drop-tail hem for added coverage in back. Fitted design. Imported.