Under Armour Base 4.0 Crew – Black

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.

• 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 and comfortable
• Material wicks sweat and dries really fast
• 4-way stretch construction moves better in every direction
• 78% Polyester / 22% Elasterell