Baselayer Tops

You can question a sheep's intelligence, but their choice in outwear material is above reproach. This base-layer pullover proves it.

Cold weather will not ruin the day while wearing the Dual Action Thermal Top from Voodoo Tactical. Designed to keep the user warm and comfortable during physical activity, the shirt is the ideal cold weather top for any tactical professional or outdoor...

HeatGear Armour is UA's original performance baselayer - the one you put on first and take off last. So they made it extra comfortable by wicking sweat and stretching so you can move no matter what.

UA Base 4.0 is built for extreme cold weather and lower activity. It uses a unique pattern that's designed to trap heat without adding bulk. Think long underwear, revamped for today's top athletes.

ColdGear Infrared technology holds in body heat, without adding weight or bulk. It's a special, soft print on the inside and it keeps you warmer, longer, so you can work out in the bitter cold.

ColdGear Infrared technology holds in body heat, without adding weight or bulk. It's a special, soft print on the inside and it keeps you warmer, longer, so you can work out in the bitter cold.

HeatGear Armour is UA's original performance baselayer - the one you put on first and take off last. So they made it extra comfortable by wicking sweat and stretching so you can move no matter what.

HeatGear Armour is UA's original performance baselayer - the one you put on first and take off last. So they made it extra comfortable by wicking sweat and stretching so you can move no matter what.

HeatGear Armour is UA's original performance baselayer - the one you put on first and take off last. So they made it extra comfortable by wicking sweat and stretching so you can move no matter what.

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 2.0 is built for cold weather and high activity levels. It uses a unique pattern that's designed to trap heat without adding bulk. Think long underwear, revamped for today's top athletes.

We all hate it. That stiff, distracted feeling you get when you're out in the cold. That's why UA built a baselayer that keeps you warm and dry without being bulky or riding up, so you can stay focused all season long.

HeatGear is our original performance baselayer—the one you put on first and take off last. So we made it extra comfortable by wicking sweat and stretching so you can move no matter what.

UA HG Armour Comp LS - Color: - Size: XL

The FlexTech Base Layer fabric features an intimate blend of cotton and spandex for quick drying comfort with Nano Moisture Wicking and antimicrobial technologies to inhibit the growth of odor-causing bacteria. The soft hand and 4-way stretch provide...

UA Base 2.0 is built for cold weather and high activity levels. It uses a unique pattern that's designed to trap heat without adding bulk. Think long underwear, revamped for today's top athletes.