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.
Under Armour Men's ColdGear Base 4.0 Leggings : : Clothing, Shoes & Accessories
CCM Performance Compression Pant Yth - Professional Skate Service
1.0 Capped Short Sleeve *Made in the USA - Base Layers
The 2021 GQ Fitness Awards: The Best Workout Clothes, Gear, Tech, and Accessories
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SHE Outdoor 4.0 Base Layer Pants for Ladies
The 2021 GQ Fitness Awards: The Best Workout Clothes, Gear, Tech, and Accessories
Girlfriend Collective Compressive High-Rise 23.75 In Legging - Women's
Women's UA Base 4.0 ½ Zip
Under Armour Youth Packaged Base 4.0 Leggings
Under Armour Women's ColdGear Base 4.0 Leggings XS Black at Women's Clothing store
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
Men's UA Base 4.0 Crew