What's it do?
The Men's UA Base 4.0 Crew was built to battle nature's coldest and most brutal conditions. Its patented negative grid fabric traps heat in tiny pockets to keep you ridiculously warm without feeling weighed down. It wicks away excess moisture in its unique grid channels-keeping you dry and comfortable no matter how hard you work. You can also move with unrestricted ease thanks to UA's super-stretchy fabrication. Facing insane temperatures? Get the performance crew that makes more sense-and delivers more warmth-than anything else out there.
*UA Base 4.0 delivers heat like no other, keeping you warm even in the brutal cold
*Signature negative grid fabric traps heat in tiny pockets for long-lasting protection against the cold and extreme moisture transport to keep you dry and light in the coldest conditions
*4-way stretch construction improves range of motion and dries faster
*Soft, moisture-wicking interior regulates your core temp, keeping you dry and comfortable
*Anti-odor technology prevents the growth of odor-causing microbes to keep your crew fresher, longer
*Smooth flatlock seams and raglan sleeves prevent chafing
*7.5 oz. Polyester/Elastane