These aren’t your grandpa's long underwear. UA took the thermal and rebuilt it to work for athletes that take their game off-road. The unique negative grid traps monster warmth without adding excess weight and the smooth exterior allows easy layering. UA Base™ 2.0 is our most versatile thermal, built for any outdoor athlete. From running to hunting, the hill to the field, UA Base™ 2.0 has you covered with lightweight warmth.

• UA Base™ 2.0 is highly versatile mid-weight protection for colder conditions and a variety of activity levels
• Soft, brushed negative grid interior traps hot air, providing superior warmth
• 4-Way Stretch fabrication allows greater mobility and maintains shape
• Signature Moisture Transport System wicks sweat away from the body
• Quick-dry fabrication keeps you light and comfortable
• Anti-Odor technology prevents the growth of odor causing microbes
• Raglan sleeve construction and flatlock stitching allow a full range of motion without chafing
• 4.7 oz. Polyester/Elastane
• Imported