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.
UA Men's ColdGear Base 4.0 1/4 Zip
Under Armour
Clothing/Base Layer/Baselayer Tops
$110.00
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Some of Our Favorite Products
Under Armour
UA Men's ColdGear Base 4.0 Crew
$100.00
Under Armour
UA Men's ColdGear Base 4.0 Leggings
$100.00
Under Armour
UA Women's ColdGear Base Leggings 4.0
$100.00
Under Armour
UA Men's ColdGear Base 2.0 Leggings
$60.00
Under Armour
UA Men's ColdGear Base 2.0 Crew
$60.00
Under Armour
UA Men's ColdGear Base 3.0 Leggings
$70.00
Under Armour
UA Men's ColdGear Base 3.0 Crew
$70.00
Under Armour
Women's ColdGear Base 4.0 1/2 Zip
$110.00
Under Armour
UA Tactical ColdGear Infrared Base Crew
$60.00