Under Armour Women's Base 4.0 Leggings, Black, Large, Leggings - Canada

Women's Tungsten II Pants

Men's Under Armour Packaged Base 4.0 Leggings

Smartwool Women's Merino 250 Baselayer Bottom

Conquer the chill with these Men's Leggings, featuring UA Base 3.0 All Season Baselayer for midweight warmth across various activity levels and

Under Armour Men's ColdGear Base 3.0 Leggings (Black)

Merino Heated Baselayer Pant Women's

Basketball Compression 3/4 Tight with Knee Support (Black)

What you need to know about base layers

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

Women's UA Base 4.0 Leggings

Under Armour Base