Under Armour Packaged Base 4.0 Crew

The UA Packaged Base 4.0 Crew is engineered for extreme cold weather, making it the perfect choice for lower activity levels. This innovative base layer features a unique pattern that effectively traps heat while maintaining a lightweight feel.

Designed with today’s top athletes in mind, it redefines traditional long underwear. The UA Base 4.0 ensures maximum warmth without the bulk, allowing for unrestricted movement. Stay comfortable and focused on your performance, no matter the conditions.