UA Base 4.0 is 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.
MaterialUA Base™ 4.0 Extreme Baselayer is our warmest yet, delivering extreme warmth in the extreme cold
UA Scent Control Technology to keep you undetected in all pursuits
Soft, brushed grid interior traps air, 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
Style + FeaturesGenerous ½ zip front makes for easy layering
Year2024
BrandUnder Armour
TypeTop
GenderWomens
