Men's UA Base 4.0 Crew
UA Base 4.0 is a men's baselayer built for extreme cold weather and lower activity. It uses a unique pattern that's designed to trap heat without
![](https://m.media-amazon.com/images/I/71TgEDApYCL._UX250_.jpg)
Under Armour Men's Packaged Base 4.0 Crew T-Shirt
![](https://op1.0ps.us/305-305-ffffff-q/opplanet-under-armour-coldgear-base-2-0-crew-long-sleeve-shirt-womens-black-x-small-1343321001xs-main.jpg)
Under Armour ColdGear Base 2.0 Crew Long Sleeve Shirts - Women's
![](https://m.media-amazon.com/images/S/aplus-media-library-service-media/4b348821-f8e1-4405-a85f-be4333d58691.__CR0,0,970,600_PT0_SX970_V1___.png)
Under Armour Men's ColdGear Base 4.0 Leggings , Black
![](https://images-na.ssl-images-amazon.com/images/I/719IOsyqzYL._AC_UL600_SR600,600_.jpg)
Under Armour Men's Packaged Base 4.0 1/4 Zip T-Shirt
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.
Under Armour Women's ColdGear Base 4.0 Crew Black XL
![](https://m.media-amazon.com/images/I/61aNikgGYOL._UX250_.jpg)
Under Armour Men's Packaged Base 4.0 1/4 Zip T-Shirt
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.
Under Armour Women's ColdGear Base 4.0 1/2 Zip - Black, Small
UA Base 4.0 is a men's baselayer 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.
![](https://m.media-amazon.com/images/I/51HcV7qaxRL._AC_SX569_.jpg)
Under Armour Men's ColdGear Base 4.0 Crew (Black)
![](https://i.ebayimg.com/thumbs/images/g/NP8AAOSw~i1iUfPk/s-l640.jpg)
Under Armour Winter Sports Base Layers for sale