Under Armour Men's Packaged Base 4.0 Legging - Black
![](https://media-www.atmosphere.ca/product/div-03-softgoods/dpt-78-winter-clothing-accessories/sdpt-01-mens/332863799/ua-m-packaged-base-4-0-leggin-black-s--eccb1367-3f80-4171-9739-497ef0137b5b-jpgrendition.jpg?imdensity=1&imwidth=1244&impolicy=mZoom)
UA Base is a system of baselayers, numbered from 2.0 – 4.0, that takes you from cold to absolutely freezing temps. It uses a special negative grid
Men's UA Base 4.0 Crew
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.
Men's UA Base 4.0 Leggings
![](https://static.mercdn.net/item/detail/orig/photos/m43049450120_1.jpg?167574287501234)
アンダーアーマー コールドギア レギングス インナー スパッツ SM
![](https://jaxgoods.com/cdn/shop/files/51-1192566-0-image-1660128_512x512.jpg?v=1691897089)
Clothing & Footwear — Page 137 — JAXOutdoorGearFarmandRanch
![](https://media-www.atmosphere.ca/product/div-03-softgoods/dpt-78-winter-clothing-accessories/sdpt-01-mens/332882967/hh-m-lifa-active-pant-f20-bla-black-s--ff72edcd-730d-4d41-9b21-2d973c90559c-jpgrendition.jpg?imdensity=1&imwidth=1244&impolicy=mZoom)
Helly Hansen Men's Lifa Active Pants - Black
![](https://www.spyder.com/cdn/shop/products/229534_001_2_750x.jpg?v=1667575367)
Mens Performance Baselayer - Black – Spyder
![](https://hips.hearstapps.com/hmg-prod/images/thermal-underwear-1601400858.jpg?crop=0.502xw:1.00xh;0.250xw,0&resize=640:*)
The Best Thermal Underwear to Buy in 2022 - Base Layers for Men & Women
The HH Lifa® Active Pant provides lightweight warmth and all-day comfort.
Helly Hansen Men's Lifa Active Pants - Black
![](https://media-www.atmosphere.ca/product/div-03-softgoods/dpt-78-winter-clothing-accessories/sdpt-01-mens/332902213/ripzone-m-merino-baselayer-bo-black-s--61bcc1ff-ffdc-4b7e-8767-5101db16bd9f-jpgrendition.jpg?imdensity=1&imwidth=1244&impolicy=mZoom)
Ripzone Men's Merino Baselayer Bottoms