Under Armour UA Base 4.0 Crew Boys'

He’ll stay warm outside in the Under Armour® Boys’ Base 4.0 Crew. The fitted baselayer top provides a slim, athletic cut to fit perfectly under all his layers. UA Base™ 4.0 delivers heat and the soft, brushed negative grid interior traps hot air to keep him warm in the coldest of temperatures. The wicking material keeps him dry and works with anti-odor technology to prevent the growth of odor causing microbes. A 4-way stretch construction gives him comfortable mobility to move freely in the Boys’ Base 4.0 Crew.

• Slim, athletic cut
• UA Base™ 4.0 delivers heat
• Soft, brushed negative grid interior
• 4-way stretch construction
• Wicking material
• Anti-Odor technology