Under Armour Men's Packaged Base 3.0 Crew - Medium Black

UA Base 3.0 is built for very cold weather and moderate activity. It uses a unique pattern that's designed to trap heat without adding bulk. Think long underwear, revamped for today's top athletes. UA Base™ 3.0 All Season Baselayer provides midweight warmth at many activity levels & cold temperatures. Soft, brushed grid interior traps air, managing your body's microclimate to keep you warm & comfortable. Material wicks sweat & dries really fast. 4-way stretch material moves better in every direction. Built-in thumbholes help keep sleeves in place & trap warmth, Raglan sleeves. 81% Polyester/19% Elastarell