4.8 (309) · $ 60.50 · In stock
What's it do? 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
What's it do?
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 & comfortable
Material wicks sweat & dries really fast
4-way stretch material moves better in every direction
78% Polyester/22% Elasterell
Under Armour ColdGear Base 3.0 Women's Leggings
Under Armour Men's Base 4.0 Leggings (Black)
The 5 Best Base Layers of 2024
Under Armour Men's Tactical ColdGear Infrared Base Mock
Men's UA Base 4.0 ¼ Zip
Under Armour - ColdGear® Base 4.0 Crew T-shirt
Under Armour Women's ColdGear Base 4.0 ½ Zip XS Black : Clothing, Shoes & Jewelry
Women's UA Base 4.0 Crew
Under Armour ColdGear(R) Base 4.0 1/2 Zip
Under Armour - ColdGear® Base 4.0 Crew T-shirt