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Merino Wool Men's Underwear

(90 products)
Products (90)
Remove features filter:Merino Wool
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  • Sale Ends Nov 24
    REI Co-opMerino Boxer Briefs - Men's
    $27.89
    Save 30%
    compared to  $39.95
    106 reviews with an average rating of 4.2 out of 5 stars
    Size Type:
    Regular, Big
    tasc PerformanceElevation Merino Base Layer Bottoms - Men's
    $34.73 - $54.73
    Save 30% - 56%
    compared to  $79.00
    35 reviews with an average rating of 3.8 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    REI OUTLET
  • Sale Ends Nov 24
    Top Rated
    REI Co-opHeavyweight Merino Base Layer Bottoms - Men's
    $69.89
    Save 30%
    compared to  $99.95
    9 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big, Tall
  • Sale Ends Nov 24
    REI Co-opMerino Boxers - Men's
    $27.89
    Save 30%
    compared to  $39.95
    69 reviews with an average rating of 4.3 out of 5 stars
    Size Type:
    Regular, Big
    tasc PerformanceElevation Merino T-Shirt - Men's
    $54.73
    Save 30%
    compared to  $79.00
    41 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    REI OUTLET
  • Sale Ends Nov 24
    REI Co-opMerino 185 Base Layer Bottoms - Men's
    $55.89
    Save 30%
    compared to  $79.95
    130 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
  • Sale Ends Nov 24
    REI Co-opHeavyweight Merino Long-Sleeve Base Layer Crew Top - Men's
    $69.89
    Save 30%
    compared to  $99.95
    25 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big, Tall
  • Sale Ends Dec 1
    Top Rated
    SmartwoolClassic Thermal Merino Base Layer Bottoms - Men's
    $86.19
    Save 25%
    compared to  $115.00
    624 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
  • Sale Ends Dec 1
    Top Rated
    SmartwoolClassic Thermal Merino Crew Base Layer Top - Men's
    $86.19
    Save 25%
    compared to  $115.00
    1502 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
  • Sale Ends Nov 24
    Top Rated
    REI Co-opMerino 185 Long-Sleeve Base Layer Top - Men's
    $55.89
    Save 30%
    compared to  $79.95
    189 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
  • Sale Ends Dec 1
    SmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Men's
    $67.49
    Save 25%
    compared to  $90.00
    67 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
  • Sale Ends Nov 24
    REI Co-opHeavyweight Merino Base Layer Half-Zip Top - Men's
    $73.39
    Save 30%
    compared to  $104.95
    15 reviews with an average rating of 3.9 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big, Tall
  • Sale Ends Nov 24
    REI Co-opMerino 185 Base Layer Top - Men's
    $48.89
    Save 30%
    compared to  $69.95
    54 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
  • Sale Ends Nov 24
    Top Rated
    REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Men's
    $62.89
    Save 30%
    compared to  $89.95
    110 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
  • Sale Ends Dec 1
    SmartwoolClassic All-Season Merino Base Layer Bottoms - Men's
    $67.49
    Save 25%
    compared to  $90.00
    20 reviews with an average rating of 4.1 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
  • Sale Ends Dec 1
    Top Rated
    SmartwoolClassic Thermal Merino Quarter-Zip Base Layer Top - Men's
    $89.99
    Save 25%
    compared to  $120.00
    28 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
  • Sale Ends Dec 8
    Top Rated
    IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Men's
    $78.69
    Save 25%
    compared to  $105.00
    167 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    Top Rated
    IcebreakerMerino Blend Anatomica Cool-Lite Boxers - Men's
    $37.73
    Save 24%
    compared to  $50.00
    12 reviews with an average rating of 4.5 out of 5 stars
    Size Type:
    Big
    REI OUTLET
  • Sale Ends Dec 1
    SmartwoolClassic All-Season Merino T-Shirt - Men's
    $59.99
    Save 25%
    compared to  $80.00
    89 reviews with an average rating of 4.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    Top Rated
    Helly HansenLIFA Merino Midweight Half-Zip Base Layer Top - Men's
    $79.73
    Save 27%
    compared to  $110.00
    5 reviews with an average rating of 4.8 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Big
    REI OUTLET
    IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Men's
    $78.73
    Save 25%
    compared to  $105.00
    68 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Big, Regular
    REI OUTLET
  • Sale Ends Nov 24
    Top Rated
    REI Co-opMerino 185 Long-Sleeve Base Layer Top - Men's Tall Sizes
    $55.89
    Save 30%
    compared to  $79.95
    8 reviews with an average rating of 4.9 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Tall, Big
  • Sale Ends Nov 24
    REI Co-opMerino 185 Base Layer Bottoms - Men's Tall Sizes
    $55.89
    Save 30%
    compared to  $79.95
    13 reviews with an average rating of 3.9 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Tall, Big
  • Sale Ends Dec 8
    Top Rated
    IcebreakerMerino 260 Tech Long-Sleeve Crewe Thermal Top - Men's
    $93.69
    Save 25%
    compared to  $125.00
    63 reviews with an average rating of 4.8 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big
    SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Men's
    $92.73
    Save 28%
    compared to  $130.00
    9 reviews with an average rating of 4.1 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    REI OUTLET
  • Sale Ends Dec 1
    SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Men's
    $97.49
    Save 25%
    compared to  $130.00
    190 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
  • Sale Ends Dec 8
    Top Rated
    IcebreakerMerino 200 Oasis Base Layer Leggings with Fly - Men's
    $78.69
    Save 25%
    compared to  $105.00
    63 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
  • Sale Ends Dec 1
    SmartwoolClassic All-Season Merino Quarter-Zip Base Layer Top - Men's
    $71.19
    Save 25%
    compared to  $95.00
    4 reviews with an average rating of 4.8 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    SmartwoolIntraknit Active Base Layer Bottoms - Men's
    $81.73
    Save 25%
    compared to  $110.00
    2 reviews with an average rating of 4.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Big, Regular
    REI OUTLET
    Top Rated
    Icebreaker200 Sonebula Leggings - Men's
    $89.73
    Save 25%
    compared to  $120.00
    5 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Big
    REI OUTLET
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