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Featured
Most Popular
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Highest Rated
Price: High to Low
Price: Low to High
  • $90.00
    A performance tight with moisture-wicking fabric and advanced thermal-reflective lining
  • A man and woman walking their dog in the snow. A an abstract green tree pattern.
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Men's Long Underwear Bottoms
From insulating warmth for frigid days spent on the mountain to lightweight protection for charging up the trail, you'll find comfort and performance with men's long underwear baselayers from Columbia Sportswear. Not your father's long underwear, these bottoms are next-generation designs for outdoor pursuits, whether it's high-altitude adventures or high-octane athletics.

With features like comfort stretch fabric, thermal-reflective lining, and moisture-wicking technology, you'll stay comfortable and protected in all conditions. And with a range of sizes and styles, you'll find the right fit for whatever the day brings.