Base 4.0 Crew - Men's
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Quantity
Base 4.0 Crew
Details
- Heavyweight baselayer top designed for the coldest winter pursuits
- Soft grid fabric traps air against the skin to keep you warm
- Wicks moisture and dries quickly to keep sweat from freezing
- Four-way stretch construction moves with you during cold ski days
- Anti-odor technology keeps you smelling fresh on multi-day trips
- Item #UND02S3
- Material
- 78% polyester, 22% elasterell
- Insulation Weight
- heavyweight
- Fit
- fitted
- Style
- crew
- Anti-Odor
- UA Scent Control
- Recommended Use
- skiing, snowboarding, hiking, snowshoeing, mountaineering, winter camping
- Manufacturer Warranty
- limited lifetime
Reviews
Q&A
What do you think about this product?
Overall Rating
4 based on 99 ratings
Review Summary
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Selecting an option will reload the available reviews on the pageJanuary 7, 2025
Great Product
I bought these for my boyfriend who is an avid hunter and Lineman, he loves them! They keep him warm without getting sweaty!
Originally reviewed on Under Armour
January 3, 2025
Great replacement for a coat
I don’t like wearing a coat in Wisconsin. I wanted a solution that provided warmth while still fitting my aesthetic. This base layer 4.0 has been perfect for me. It’s fitted, not bulky and makes a huge difference in keeping my chest and arms warm with just a long sleeve on top of it. I recommend!
Originally reviewed on Under Armour
December 31, 2024
Warm, Comfortable, and Reliable
This base layer is a game changer for cold weather. It is incredibly warm without being bulky it fits perfectly and wicks moisture like a pro. Ideal for any winter activity highly recommend!
Originally reviewed on Under Armour
December 30, 2024
Well made
Purchased for tactical operations. Well made product with great heat retention. Used during cold weather operations and these extended the operational time of individuals, making relief operations an easier task. May be too warm in an active environment.
Originally reviewed on Under Armour
December 23, 2024
Very warm
The fit was great and the warmth is what I have come to expect with UA cold gear
Originally reviewed on Under Armour
December 21, 2024
SO WARM!
This shirt blew my expectations away. I wear this on patrol and it keeps me warm throughout the night. I usually wear size L but got a M and it is nice and snug.
Originally reviewed on Under Armour
December 21, 2024
Best cold weather gear
I have multiple sets of these and use them for many activities. They breathe well, they keep you very warm but not sweaty unless you are very active and not in the cold
Originally reviewed on Under Armour
December 20, 2024
Warm comfort
My husband loves these Snug but not too tight Thick for winter outdoor work
Originally reviewed on Under Armour
December 20, 2024
Everything I expected
I bought this because I wanted some super warm clothes while being out in the cold for extended periods of time. I haven't tried with exercise yet. But, they don't seem so bulky that I couldn't.
Originally reviewed on Under Armour
December 20, 2024
Awesome
These are so cozy. Highly recommend
Originally reviewed on Under Armour
Do you have a question about this product?
October 9, 2022
I had the ua metal is the 4.0 the new version of that cause the metal was amazing at extremely cold temperatures like sub 0 Temps and I'm looking for something like that again
March 1, 2022
What's the arm length in small vs. medium?
December 15, 2021
How to care for Base4.)
November 4, 2021
Does any one else get a burning itch when you start sweating
January 10, 2021
I am seeking for base layer for golfing at 25 F. Please recommend best options.
December 13, 2020
What is the arm length on the XL vs the XXL?
March 26, 2020
Hello, How much does the Under Armour Packaged Base 4.0 Crew Shirt weight? Do you have an exact measurement? I am curious about the Small and Medium sizes. Thanks! Asaf
January 4, 2020
I currently own a older base model (about 5 to 6 years old) that does not have the rating on it. and a newer model base layer about two years old what would be the difference between what I have and the new product?
November 16, 2019
I need something for warmth in outside temps of 15 degrees F
October 28, 2019
