Under Armour
Women's UA Packaged Base 4.0 1/2 Zip
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.
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5.0
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11/20/2025
Very Warm!
This is a great base layer for cold weather activities!
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