Baselayer

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.

For superior comfort, the Regulation Base Layer offers strong yet soft cotton that is vat-dyed for consistent color and a true, remarkable fit. These 100% combed cotton jersey knits offer a generous fit with extra-long tails. Additional features include...

For superior comfort, the Regulation Base Layer offers strong yet soft cotton that is vat-dyed for consistent color and a true, remarkable fit. These 100% combed cotton jersey knits offer a generous fit with extra-long tails. Additional features include...

The ZANheadgear SportFlex Series Arm Sleeve is heavier than the standard arm sleeve, with a softness & comfort that surpasses any competitor. Perfect to wear as protection from the sun or to keep warm in the cold. Lightweight and machine washable,...

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.

UA Base 3.0 men's cold weather leggings are built for extreme cold weather and lower activity. Their unique pattern traps heat without adding bulk. Think long underwear, revamped for today's top athletes.

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.

UA Base 4.0 men's cold weather leggings are built for extreme cold weather and lower activity. Their unique pattern traps heat without adding bulk. Think long underwear, revamped for today's top athletes.

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 our original performance baselayer - the one you put on first and take off last. So UA made it extra comfortable by wicking sweat and stretching so you can move. No athlete can go without it.

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.