Under Armour Cold Gear Base 4.0 Top

• UA Base™ 4.0 Extreme Baselayer is our warmest yet, locking in your body's heat to deliver extreme warmth in the extreme cold

• UA Scent Control Technology to keep you undetected in all pursuits

• Soft, brushed grid interior traps air against your skin, closely managing your body's microclimate to keep you warm & comfortable

• Material wicks sweat & dries really fast

• 4-way stretch material moves better in every direction

• 78% Polyester/22% Elasterell

UA Base 4.0 is a men's baselayer built for extreme cold weather and lower activity. It uses a unique pattern that's designed to trap heat without adding bulk. Think long underwear, revamped for today's top athletes.