UA Base 4.0: Mega-grid thermal fleece for the ultimate warmth in the brutal cold. Thermal grid fabric traps heat in tiny pockets for long-lasting protection. Quick-dry construction wicks moisture to keep you drier, lighter, and more comfortable. Lightweight, 4-way stretch construction improves mobility and maintains shape. Wide, flat waistband with a rise that sits just right on your hips.
UA Base 4.0: Mega-grid thermal fleece for the ultimate warmth in the brutal cold. Thermal grid fabric traps heat in tiny pockets for long-lasting protection. Quick-dry construction wicks moisture to keep you drier, lighter, ...
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