Under Armour's Base 3.0 Long Sleeve Crew are built for very cold weather and moderate activity. They feature a soft brushed grid interior which traps air, managing your body's microclimate to keep you warm and comfortable without adding unnecessary bulk. The integrated UA Scent Control Technology helps repent the growth of odor causing microbes, and a 4-way stretch material moves better in every direction. UA Base 3.0 All Season Baselayer provides midweight warmth at many activity levels & cold temperaturesUA Scent Control Technology to keep you undetected in all pursuitsSoft, brushed grid interior traps air, managing your body's microclimate to keep you warm & comfortableMaterial wicks sweat & dries really fast4-way stretch material moves better in every direction Under Armour Whitetail ColdGear Base Long Sleeve Crew 3.0 Black/Pitch Gray 1343320-001