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Omni-Heat™ Baselayer packs heat conservation into thin wicking layers to maintain dry warmth.
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Ergonomic design lines contour the body, while flat lock stitching and a streamlined fit enhance comfort and eliminate chafing edges, offering the perfect solution to any outdoor conditions you’re up against.

Heat Reflection

Our Omni-Heat™ Thermal Reflective silver dot lining, our innovative layers reflect your own body heat, so you can retain your body heat naturally.

Moisture Wicking

To ensure that you stay fresh and dry, we’ve incorporated Omni-Wick™ technology, which whisks moisture away from your body.

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Men's Baselayer Heavyweight Long Sleeve Top
$65.00
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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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Price: 
$65.00
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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
Omni-Wick pulls moisture away from the body and enables perspiration to evaporate quickly, keeping you dry and comfortable.

Learn More ››

People Who Viewed Also Viewed

Men's Baselayer Heavyweight Long Sleeve Top 4.9 5 11 11
great garment I slept warm for the first time on a Boy Scout campout. February 26, 2012
Really nice product This is very comfortable. Lightweight. I am 5'6", 165, and an extra large fits just right. After I was complimented on how I looked I ordered another! January 12, 2012
Excellent baselayer I work in the Columbia River Gorge in all sorts of conditions. Wearing layers of clothing is critical to staying warm and dry. The Columbia Baselayer keeps me warm and dry no matter what the weather conditions.I'm very happy with it. January 2, 2012
Great baselayer I'm currently working in Antarctica where conditions change in a hurry and layering is a priority. This top makes for a great base. When conditions are cold with no wind I can use this with a light fleese. When the wind picks up a bit I add a windbreaker. It breaths well so I can keep it on indoors without being over heated and so far it has stayed dry and warm. Can't wait for the really cold weather with high winds so I can try it out with additional layers. January 1, 2012
useful so far 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. December 13, 2011
Great baselayer for real cold conditions 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. December 5, 2011
Hot Now that I have this shirt I'm totally hot. November 30, 2011
Great Baselayer 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. November 22, 2011
Fits Great, Really Really Warm 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. October 31, 2011
Get it I got one of these and it is fantastic base layer!! As normal for Columbia, great quality matched with wonderful functionality and style. October 27, 2011
Great innovation. Thanks Columbia 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. October 4, 2011
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