Men's ColdGear® Base 4.0 Leggings

Style # 1343245
DKK 649
Height: Size: Fit: Fitted
Size and Fit Guide
Due to limited quantities, only 1,000 allowed per customer.
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Height: Size: Fit: Fitted
Men's ColdGear® Base 4.0 Leggings

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Product DNA

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 structure to trap heat without adding bulk. Think long underwear, re-engineered for athletes performing at their peak. UA Base 4.0 is built for extreme cold weather and lower activity levels.
  • Fitted: Next-to-skin without the squeeze
  • UA Base™ 4.0 Extreme Baselayer is our warmest yet, locking in your body's heat to deliver extreme warmth in the extreme cold
  • UA Scent Control Technology to keep you undetected in all pursuits
  • Soft, brushed grid interior traps air against your skin, closely managing your body's microclimate to keep you warm & comfortable
  • Material wicks sweat & dries really fast
  • 4-way stretch construction moves better in every direction
  • Performance elastic waistband
  • Working fly
  • Inside leg: 77 cm
  • 81% Polyester/19% Elasterell
  • Imported

Review Summary

23 Reviews

Under Armour

This product is great!! They are warm and comfortable to wear.

This product was great

I've had your previous 4.0 and I have to say they by far are better than this one. This one lacks the warmth I was looking for.


I work outside everyday for sometimes up to 14 hrs, and have used your products for a few years now. When it came time to get some new pairs I ordered 4 of the 4.0 cold gear extreme baselayer. I was surprised when I found myself getting cold while at work. I love the older pairs that I have and it would be awesome if you went back to that design as these that you're selling now do not work as good. Very disappointed with them and will be moving on and trying to find a different brand that will actually keep a working guy warm

Bad idea

As others have said, these are no where near as good as the original pillow fleece version. What the heck are you people thinking. If it's not broken, don't fix it

Absolutely incredible

I bought these about 6 years ago.. SIX YEARS AGO. And I still use them today. I think the model/style has changed since then. But holy wow these rock. I originally bought them to wear in ND when I was working on Oil Rigs doing system testing. During the winter when the wind is blowing hard, temps reach -50 or worse at time. I use to wear these and then just a pair of work pants over them and I was fine. (the work pants were slightly insulated too) But compared to my fellow workers who had many many layers on, I had just 2. I love these. Im actually wearing them now and about to go hiking up the Manitou Incline in CO. Its about 15 degrees out. Im just wearing these and a pair of shorts over them.

Cold gear long underwear

My husband is a soccer coach and always cold he love these

Quality material. Not as warm as they use to be

I have an older pair of the 4.0. Like others have mentioned, it’s made of a different material/construction that is very different from its previous construction. Definitely not worth the 80.00

Not the same product as before

These new 4.0's are no where near the same quality or performance the old 4.0's had. These are thinner and a different material. The square fleece lining is now a small thin diamond pattern and doesn't retain heat like before. I could buy a cheap pair of women's lined leggings and get as much if not more heat retention than these. The old pattern was far superior to this new design.

Great base layer!

I purchased this for my husband who is a hunter and is outdoors all fall and most of the winter. He loves the fit and durability of these. He has tried other brands and was not happy with other brand. These are his go to brand!

What happen to he warmth

They do not compare to the old version not as warm.and that is making them way over priced will not buy again till you have old version back