Spend $200, Save $40—Use Code “NOVGET40”
Backcountry.com

Men's Lightweight Long Underwear Tops

27 Results
Refine Results
Sort

Sort

Relevancy% OffTop SellersSortMore
Relevancy% OffTop SellersLowest PriceHighest PriceHighest Rated
close

Filters

Sizes

SMLXLXXL

Gender

male
Smartwool Merino 150 Long-Sleeve Baselayer - Men's
30% Off
(5)

SmartwoolMerino 150 Long-Sleeve Baselayer - Men's

$56.00 $80.00
    Smartwool Merino 150 Pattern Long-Sleeve Baselayer - Men's
    30% Off

    SmartwoolMerino 150 Pattern Long-Sleeve Baselayer - Men's

    $56.00 $80.00
    • gray
    • orange
    • green
    • brown
    • red
    Duckworth Maverick T-Shirt - Men's
    11% Off
    (3)

    DuckworthMaverick T-Shirt - Men's

    $79.95 $89.95
    • black
    • green
    Marmot Folsom Reversible Long-Sleeve Top - Men's
    45% Off
    (1)

    MarmotFolsom Reversible Long-Sleeve Top - Men's

    from $35.72 $64.95
    • red
    • green
    Smartwool Merino 150 1/4-Zip Baselayer - Men's
    30% Off
    (1)

    SmartwoolMerino 150 1/4-Zip Baselayer - Men's

    $59.50 $85.00
    • blue
    • black
    Bjorn Daehlie Airnet Shirt - Men's
    11% Off
    (2)

    Bjorn DaehlieAirnet Shirt - Men's

    $79.95 $89.95
      Stoic Lightweight 1/4 Zip Baselayer Top - Men's
      50% Off
      (2)

      StoicLightweight 1/4 Zip Baselayer Top - Men's

      $17.47 $34.95
      • blue
      • black
      Stoic Merino Blend Crew Baselayer Top - Men's
      50% Off
      (1)

      StoicMerino Blend Crew Baselayer Top - Men's

      $39.97 $79.95
      • gray
      • black
      Icebreaker BodyFit 150-Ultralight Anatomica V-Neck Shirt - Men's
      10% Off
      (2)

      IcebreakerBodyFit 150-Ultralight Anatomica V-Neck Shirt - Men's

      $62.82 $70.00
        Stoic Merino Blend 1/4 Zip Baselayer Top - Men's
        50% Off

        StoicMerino Blend 1/4 Zip Baselayer Top - Men's

        $44.97 $89.95
        • gray
        • black
        Helly Hansen Dry Stripe Crew Top - Men's
        30% Off
        (31)

        Helly HansenDry Stripe Crew Top - Men's

        from $27.96 $40.00
        • blue
        • black
        Icebreaker 175 Everyday Long-Sleeve Crew Top - Men's
        17% Off
        (15)

        Icebreaker175 Everyday Long-Sleeve Crew Top - Men's

        $57.90 $70.00
          Smartwool Merino 150 Baselayer - Men's
          35% Off
          (3)

          SmartwoolMerino 150 Baselayer - Men's

          from $48.75 $75.00
          • green
          • black
          • blue
          Icebreaker 200 Oasis 1/2-Zip Top - Men's
          36% Off
          (6)

          Icebreaker200 Oasis 1/2-Zip Top - Men's

          $64.29 $100.00
            Ortovox 185 Rock'N'Wool Long-Sleeve Top - Men's
            25% Off
            (3)

            Ortovox185 Rock'N'Wool Long-Sleeve Top - Men's

            $82.50 $110.00
            • gray
            • orange
            • green
            • blue
            Icebreaker 175 Everyday 1/2-Zip Top - Men's
            (6)

            Icebreaker175 Everyday 1/2-Zip Top - Men's

            $80.00
              Icebreaker 200 Oasis Long-Sleeve Crew Top - Men's
              36% Off
              (1)

              Icebreaker200 Oasis Long-Sleeve Crew Top - Men's

              $57.86 $90.00
                Ortovox Rock'N'Wool Overall - Men's
                25% Off
                (2)

                OrtovoxRock'N'Wool Overall - Men's

                $150.00 $200.00
                  Icebreaker BodyFit 150-Ultralight Anatomica Crew - Men's
                  34% Off
                  (8)

                  IcebreakerBodyFit 150-Ultralight Anatomica Crew - Men's

                  $52.95 $80.00
                  • black
                  • gray
                  Icebreaker BodyFit 150-Ultralite Anatomica Tank Top - Men's
                  12% Off
                  (3)

                  IcebreakerBodyFit 150-Ultralite Anatomica Tank Top - Men's

                  from $57.00 $65.00
                  • black
                  • white
                  32 Degrees Heat Plus Crew Neck Shirt - Men's
                  62% Off

                  32 DegreesHeat Plus Crew Neck Shirt - Men's

                  $7.60 $20.00
                  • black
                  • gray
                  Smartwool Merino 250 Pocket Crew Top - Men's
                  30% Off

                  SmartwoolMerino 250 Pocket Crew Top - Men's

                  $80.50 $115.00
                  • black
                  • blue
                  • green
                  Smartwool Merino 150 Pattern Baselayer - Men's
                  30% Off
                  (1)

                  SmartwoolMerino 150 Pattern Baselayer - Men's

                  $52.50 $75.00
                  • blue
                  • red
                  • gray
                  • green
                  • orange
                  Terramar Ascendor Performance 1/2-Zip Top - Men's
                  30% Off

                  TerramarAscendor Performance 1/2-Zip Top - Men's

                  $20.99 $29.95
                    Craft COOL Mesh Superlight Sleeveless Base Layer - Men's - GWP

                    CraftCOOL Mesh Superlight Sleeveless Base Layer - Men's - GWP

                    $49.95
                      Swix Race X Bodywear Wind 1/2-Zip Top - Men's
                      35% Off

                      SwixRace X Bodywear Wind 1/2-Zip Top - Men's

                      $64.97 $99.95
                        Arc'teryx Phase SL Zip-Neck Top - Men's
                        35% Off
                        (4)

                        Arc'teryxPhase SL Zip-Neck Top - Men's

                        $55.25 $85.00

                          Show

                          Hike & Camp Gear 60% off or More
                          Items Under $10