UA 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 against your skin, closely managing your body's microclimate to keep you warm & comfortable
Description
Under Armour's mission is simple: to make you better. That means if you set a goal, we'll help you crush it. We do that with performance innovation and game-changing shoes, shirts, and digital tools that push the limits of what you thought possible.
