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Men's Long Thermal Underwear & Base Layers

Thermal Underwear Pants, Base Layer Shirts & Long Underwear Shirts

You'll want our men's thermal underwear shirts and pants for home and during your winter travels through cold airports and chilly cities. Our best base layers deliver all the warmth and coziness you expect from us because if there’s one thing we’ve learned from Wisconsin winters, it’s that you don’t skip your base layer. We have long underwear shirts and base layer pants in regular and tall sizes, and find out about our personalization selections for monogrammed underwear and other personalized men's clothing items. With our flexible thermal underwear pants, you'll experience extra give as you're rushing to make a connecting flight on a winter's day.

Have our men's thermal underwear to fight chills while you're at home or traveling this holiday season. Our best base layers are lightweight winter essentials made to help you maintain your body’s heat.

Products 13 - 16 of 16
  • Men's Thermaskin Natural Merino Henley

    Men's Thermaskin Natural Merino Henley

    Our high-performance Thermaskin™ Henley has a little stretch for greater comfort and better shape recovery. And Naturals are made of a precise blend combining the lightweight warmth, wicking, performance of nylon and merino wool to speed perspiration away from your skin and help maintain your body’s microclimate of heat — crucial for comfort in cold weather. Three button crew neck lets you adjust the warmth. Raglan sleeves allow full range of motion.
    Item #470492-6Y
    Color:
    $32.97 - $84.95
    $32.97 - $84.95
    Size: Please Select
    • S
      $32.97 $84.95
    • M
      $32.97 $84.95
    • XL
      $32.97 $84.95
    • XXL
      $32.97 $84.95
    Size: Please Select
    • S
      $32.97 $84.95
    • M
      $32.97 $84.95
    • XL
      $32.97 $84.95
  • Men's Tall Stretch Thermaskin Long Underwear Mock Neck Base Layer

    Men's Tall Stretch Thermaskin Long Underwear Mock Neck Base Layer

    If there’s one thing we’ve learned from Wisconsin winters, it’s that you don’t skip your base layer. That extra bit of warmth can be the difference between feeling mildly annoyed by the cold ... and feeling like you just got hit by an ice-nado. More than just feeling warm, though, we want you to be comfortable. So we developed a fabric that’s significantly stretchier than the stuff we’ve offered in the past. The extra give provides a more natural, flexible feel that makes it virtually disappear. And since the last thing you want to be is damp when it’s cold, Thermaskin™ technology pulls moisture away from your skin to keep you comfortably dry, too. This is one base layer you don’t want to skip.
    Item #501207-AF
    Color:
    $49.95
    $49.95
    $49.95
    Size: Please Select
    • L
      $54.95
    • XL
      $54.95
    • XXL
      $54.95
    Size: Please Select
    • L
      $54.95
    • XL
      $54.95
    • XXL
      $54.95
    Size: Please Select
    • M
      $54.95
    • L
      $54.95
    • XL
      $54.95
    • XXL
      $54.95
  • Men's Stretch Thermaskin Long Underwear Quarter Zip Base Layer

    Men's Stretch Thermaskin Long Underwear Quarter Zip Base Layer

    If there’s one thing we’ve learned from Wisconsin winters, it’s that you don’t skip your base layer. That extra bit of warmth can be the difference between feeling mildly annoyed by the cold ... and feeling like you just got hit by an ice-nado. More than just feeling warm, though, we want you to be comfortable. So we developed a fabric that’s significantly stretchier than the stuff we’ve offered in the past. The extra give provides a more natural, flexible feel that makes it virtually disappear. And since the last thing you want to be is damp when it’s cold, Thermaskin™ technology pulls moisture away from your skin to keep you comfortably dry, too. This is one base layer you don’t want to skip.
    Item #501269-AF
    Color:
    $54.95
    $54.95
    $54.95
    $54.95
    Size: Please Select
    • S
      $54.95
    • M
      $54.95
    • L
      $54.95
    • XL
      $54.95
    • XXL
      $54.95
    Size: Please Select
    • S
      $54.95
    • M
      $54.95
    • L
      $54.95
    • XL
      $54.95
    • XXL
      $54.95
    Size: Please Select
    • S
      $54.95
    • M
      $54.95
    • L
      $54.95
    • XL
      $54.95
    • XXL
      $54.95
    Size: Please Select
    • S
      $54.95
    • M
      $54.95
    • L
      $54.95
    • XL
      $54.95
    • XXL
      $54.95
  • Men's Tall Stretch Thermaskin Long Underwear Quarter Zip Base Layer

    Men's Tall Stretch Thermaskin Long Underwear Quarter Zip Base Layer

    If there’s one thing we’ve learned from Wisconsin winters, it’s that you don’t skip your base layer. That extra bit of warmth can be the difference between feeling mildly annoyed by the cold ... and feeling like you just got hit by an ice-nado. More than just feeling warm, though, we want you to be comfortable. So we developed a fabric that’s significantly stretchier than the stuff we’ve offered in the past. The extra give provides a more natural, flexible feel that makes it virtually disappear. And since the last thing you want to be is damp when it’s cold, Thermaskin™ technology pulls moisture away from your skin to keep you comfortably dry, too. This is one base layer you don’t want to skip.
    Item #501269-AF
    Color:
    $54.95
    $54.95
    $54.95
    $54.95
    Size: Please Select
    • M
      $59.95
    • L
      $59.95
    • XL
      $59.95
    • XXL
      $59.95
    Size: Please Select
    • M
      $59.95
    • L
      $59.95
    • XL
      $59.95
    • XXL
      $59.95
    Size: Please Select
    • M
      $59.95
    • L
      $59.95
    • XL
      $59.95
    • XXL
      $59.95
    Size: Please Select
    • M
      $59.95
    • L
      $59.95
    • XL
      $59.95
    • XXL
      $59.95

Wear our men's thermal underwear under your daytime and nighttime clothes to stay warm while you’re in the great outdoors.

Our comfy men's thermal underwear separates are not only essential base layers at home during the winter; they’re must-haves you can depend on when you're on the road. Take along our best base layers for business trips to windy Chicago or for family holiday adventures in the Big Apple. Our long underwear shirts and other men's underwear essentials feature fabrics developed with significantly more stretch and softness. Our thermal underwear pants and base layers shirts offer a more natural, flexible feel, and consider personalizing our men's thermal underwear or other men's clothes by adding a monogram.

In our men's thermal underwear, you'll feel cozy, even when you're stuck for long hours in chilly airports during your travels. You'll find our best base layers in regular and tall sizes, offering a great fit with the extra give you want when you're rushing to make a connecting flight. Our long underwear shirts are vital when you and the family are camping, wicking moisture away in a snap. When you're buying our thermal underwear pants and other men's underwear, rest easy knowing they’re covered by our Guaranteed. Period.® return policy: If you're not satisfied with any item, simply return it to us at any time for an exchange or refund of its purchase price.  
Products 13 - 16 of 16