UA Base 4.0: Mega-grid thermal fleece for the ultimate warmth in the brutal coldThermal 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. Raglan sleeves and flatlock seams unlock mobility and eliminate chafing. Thumbholes keep sleeves secure and help seal in your body heat.
- UA Base 4.0: Mega-grid thermal fleece for the ultimate warmth in the brutal coldThermal 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
- Raglan sleeves and flatlock seams unlock mobility and eliminate chafing
- UA Base 4.0: Mega-grid thermal fleece for the ultimate warmth in the brutal coldThermal 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
- Raglan sleeves and flatlock seams unlock mobility and eliminate chafing