After working up a sweat while you hike for fresh turns, a chilly sub zero wind can quickly lower your core temperature and send you running to the lodge. Avoid that scenario with the Under Armour Men's Base 3. 0 Crew. The heavy weight design supplies enough warmth for the coldest days on the mountain, absorbs sweat, and dries quickly so you don't feel chilled between runs. The 3. 0 Base is equally big on comfort. Snug fitting four way stretch polyester allows you to move with complete freedom, and the ergonomically placed flatlock seams ensure you'll stay chafe free throughout the day. Plus, the Armourblock anti odor technology keeps the man stink away so you can head into the lodge without clearing it out.