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Men's Base Layer Heavyweight LS Top
Men's Baselayer Heavyweight Long Sleeve Top
$74.99
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Mens OH Baselayer Heavyweight L/S
What’s next to your skin sets the stage for your comfort: don’t mess around. Developed with top physiologists, Columbia’s new heavyweight baselayers offer our highest warmth-to-weight ratio for optimal comfort in extreme winter conditions.  more less
 
Style#: AM6939
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Our technology, at work for you

Omni-Heat-Reflective

Omni-Heat® Thermal Reflective – Keep Your Warmth, Not Your Sweat
This technology helps regulate body temperature by reflecting and retaining the warmth you generate, while dissipating moisture and excess heat.

Learn More ››

Omni Wick

Omni-Wick® - Advanced Evaporation
Moisture transferring technology that moves and disperses sweat away from the body for quick evaporation, keeping you comfortable during physical activity.

Learn More ››

People Who Viewed Also Viewed

ColumbiaMen's Baselayer Heavyweight Long Sleeve Top
Overall Rating 
4.9 / 5
4.9 / 5
(7)
Open Ratings Snapshot
Rating breakdown 7 reviews
5 Stars
6
4 Stars
1
3 Stars
0
2 Stars
0
1 Star
0
Fit: 
Too Small
4 / 7
True to Size
Too Large
Quality
How would you grade this itemʼs materials, construction and workmanship?
 
4.8 / 5
4.8 / 5
Function
How well this item performed in its intended use, and beyond.
 
5 / 5
5 / 5
7 out of 7(100%)customers recommend this product.
7
7 What’s next to your skin sets the stage for your comfort: don’t mess around. Developed with top physiologists, Columbia’s new heavyweight baselayers offer our highest warmth-to-weight ratio for optimal comfort in extreme winter conditions.
Overall Rating 
4.9 / 5
4.9 / 5
(7)
Open Ratings Snapshot
Rating breakdown 7 reviews
5 Stars
6
4 Stars
1
3 Stars
0
2 Stars
0
1 Star
0
Fit: 
Too Small
4 / 7
True to Size
Too Large
Quality
How would you grade this itemʼs materials, construction and workmanship?
 
4.8 / 5
4.8 / 5
Function
How well this item performed in its intended use, and beyond.
 
5 / 5
5 / 5
7 out of 7(100%)customers recommend this product.
Product Reviews Summary
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Ratings summary
Overall Rating 
4.9 / 5
4.9 / 5
(7)
Open Ratings Snapshot
Rating breakdown 7 reviews
5 Stars
6
4 Stars
1
3 Stars
0
2 Stars
0
1 Star
0
Fit: 
Too Small
4 / 7
True to Size
Too Large
Quality
How would you grade this itemʼs materials, construction and workmanship?
 
4.8 / 5
4.8 / 5
Function
How well this item performed in its intended use, and beyond.
 
5 / 5
5 / 5
7 out of 7(100%)customers recommend this product.
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Product ReviewsWrite a review
Overall Rating 
4 / 5
4 / 5
useful so far
PostedDecember 13, 2011
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psboma
 
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Location: Boston, MA
Employee: No
Fit: 
Too Small
Fits Slightly Small
True to Size
Too Large
Quality
How would you grade this itemʼs materials, construction and workmanship?
 
4 / 5
4 / 5
Function
How well this item performed in its intended use, and beyond.
 
5 / 5
5 / 5
not been tested in elements yet. does very well as a base under a sweatshirt in 35-40 degree weather. also keeps me very dry.
Conditions: City, Sweaty, Windy
I would recommend this product.
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Overall Rating 
5 / 5
5 / 5
Great baselayer for real cold conditions
PostedDecember 5, 2011
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PhilT
 
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Location: St. Paul, MN
Outdoor Experience: Occasional Explorer (outdoors 0-19 days a year)
Employee: No
Quality
How would you grade this itemʼs materials, construction and workmanship?
 
5 / 5
5 / 5
Function
How well this item performed in its intended use, and beyond.
 
5 / 5
5 / 5
The heavy base layer is comfortable and does not get hot when indoors. It doesn't feel heavy or bulky and fits great under two or more layers without feeling bulky. Paired up with the omni-heat base layer pants it really minimizes the amount you need to wear as outer layers.
Activities: Trail, Skiing, Snowboarding
Conditions: Snowy, Windy, Freezing
I would recommend this product.
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Overall Rating 
5 / 5
5 / 5
Hot
PostedNovember 30, 2011
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RobH
 
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Location: Massachusetts
Employee: No
Quality
How would you grade this itemʼs materials, construction and workmanship?
 
5 / 5
5 / 5
Function
How well this item performed in its intended use, and beyond.
 
5 / 5
5 / 5
Now that I have this shirt I'm totally hot.
Activities: Hiking/Trekking, Boating, Other
Conditions: Windy, Freezing, Open Ocean, Other
I would recommend this product.
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Overall Rating 
5 / 5
5 / 5
Great Baselayer
PostedNovember 22, 2011
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Anonymous
Location: Denver, CO
Outdoor Experience: Everyday Adventurer (outdoors 20-52 days a year)
Employee: No
Fit: 
Too Small
Fits Slightly Large
True to Size
Too Large
Quality
How would you grade this itemʼs materials, construction and workmanship?
 
5 / 5
5 / 5
Function
How well this item performed in its intended use, and beyond.
 
5 / 5
5 / 5
This has been a very warm base layer. I use it to ski and hunt with. Its really good for hunting when your not moving around much and generating much heat on your own. At the same time, I don't get sweaty when I ski.
Activities: Skiing, Hunting Big Game, Hunting Upland
Conditions: Snowy, Freezing
I would recommend this product.
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Overall Rating 
5 / 5
5 / 5
Fits Great, Really Really Warm
PostedOctober 31, 2011
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PDOWENS
 
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Location: Raleigh, NC
I purchased the heavyweight base layer top and bottom to wear this winter under a heavier jacket while fishing. This weekend, I was out on the water during 40 degree temperatures with wind and rain. While my hands were very cold, my entire body under the base layer material was extremely warm. The Omni Heat technology is absolutely amazing.
I would recommend this product.
+1point
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Overall Rating 
5 / 5
5 / 5
Get it
PostedOctober 27, 2011
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AJohn
 
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Location: Portland
I got one of these and it is fantastic base layer!! As normal for Columbia, great quality matched with wonderful functionality and style.
I would recommend this product.
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Overall Rating 
5 / 5
5 / 5
Great innovation. Thanks Columbia
PostedOctober 4, 2011
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JamesM
 
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Location: New Jersey
Great product, great idea. The future of cold weather clothing.
Fit is just right, with a little looseness around the cuffs.
It seemed really thin at first, but the reflective dots work great, and it's amazing how warm you stay.
I would recommend this product.
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