Under Armour Women's Packaged Base 4.0 Half Zip

UNDER ARMOUR UA Base 4.0 is an extreme-warmth women's baselayer engineered for extreme cold weather and lower activity. A unique pattern and soft, brushed grid interior trap air to manage your body's microclimate without adding bulk. The material wicks sweat and dries really fast, delivering moisture-wicking, quick-dry performance with 4-way stretch for unrestricted movement. UA Scent Control Technology helps keep you undetected. A generous half zip makes layering easy, and raglan sleeves provide enhanced mobility and comfort. Think long underwear, revamped for today's top athletes.

• Material wicks sweat & dries really fast
• Soft, brushed grid interior traps air, managing your body's microclimate to keep you warm & comfortable
• UA Base 4.0 Extreme Baselayer is our warmest yet, delivering extreme warmth in the extreme cold