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Merino Wool Base Layer Bottoms

(73 products)
Products (73)
Remove features filter:Merino Wool
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    REI Co-opMerino 185 Base Layer Bottoms - Men's
    $39.83 - $55.89
    Save 30% - 50%
    compared to  $79.95
    124 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
  • Sale Ends May 26
    SmartwoolClassic All-Season Merino Base Layer Bottoms - Women's
    $67.49
    Save 25%
    compared to  $90.00
    13 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
  • Sale Ends May 26
    SmartwoolClassic Thermal Merino Base Layer Bottoms - Women's
    $86.19
    Save 25%
    compared to  $115.00
    735 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
  • Sale Ends May 26
    Top Rated
    SmartwoolClassic Thermal Merino Base Layer Bottoms - Men's
    $86.19
    Save 25%
    compared to  $115.00
    615 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    Kari TraaKlara High-Waist Base Layer Pant - Women's
    $44.83
    Save 50%
    compared to  $90.00
    10 reviews with an average rating of 3.9 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
  • Sale Ends May 26
    Top Rated
    Icebreaker260 Merino Tech Thermal Leggings with Fly - Men's
    $93.69
    Save 25%
    compared to  $125.00
    51 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big
  • Sale Ends May 26
    Kari TraaRose Capri High-Waist Base Layer Bottoms - Women's
    $69.99
    Save 30%
    compared to  $100.00
    3 reviews with an average rating of 4.0 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    tasc PerformanceElevation Merino Base Layer Bottoms - Women's
    $49.73
    Save 37%
    compared to  $79.00
    52 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    REI OUTLET
  • Sale Ends May 26
    Top Rated
    SmartwoolClassic Thermal Merino 3/4 Base Layer Bottoms - Men's
    $78.69
    Save 25%
    compared to  $105.00
    84 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    Top Rated
    SmartwoolClassic Thermal Merino Base Layer Bottoms - Kids'
    $48.73
    Save 25%
    compared to  $65.00
    52 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    tasc PerformanceElevation Merino Base Layer Bottoms - Men's
    $49.73
    Save 37%
    compared to  $79.00
    29 reviews with an average rating of 3.8 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    REI OUTLET
    Icebreaker200 Sonebula Leggings - Men's
    $89.73
    Save 25%
    compared to  $120.00
    4 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    REI OUTLET
  • Sale Ends May 26
    Kari TraaMalia Base Layer Pants - Women's
    $48.73
    Save 30%
    compared to  $70.00
    0 reviews
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    Top Rated
    REI Co-opHeavyweight Merino Base Layer Bottoms - Women's
    $49.83 - $69.93
    Save 30% - 50%
    compared to  $99.95
    18 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Plus
    REI Co-opMerino 185 Base Layer Bottoms - Women's Plus Sizes
    $39.83 - $55.89
    Save 30% - 50%
    compared to  $79.95
    8 reviews with an average rating of 3.9 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Plus
    Helly HansenLifa Merino Midweight Base Layer Pants - Men's
    $100.00
    1 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Big
  • Sale Ends May 26
    REI Co-opMerino 185 Base Layer Bottoms - Women's
    $55.89
    Save 30%
    compared to  $79.95
    103 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
  • Sale Ends May 26
    SmartwoolClassic All-Season Merino Base Layer Bottoms - Men's
    $67.49
    Save 25%
    compared to  $90.00
    18 reviews with an average rating of 4.1 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
  • Sale Ends May 26
    IcebreakerMerino 200 Oasis Thermal Leggings - Women's
    $78.69
    Save 25%
    compared to  $105.00
    66 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Plus
  • Sale Ends May 26
    SmartwoolClassic All-Season Merino 3/4 Base Layer Bottoms - Men's
    $56.19
    Save 25%
    compared to  $75.00
    2 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
  • Sale Ends May 26
    Icebreaker260 Tech High-Rise Base Layer Leggings - Women's
    $93.69
    Save 25%
    compared to  $125.00
    13 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
  • Sale Ends May 26
    Top Rated
    IcebreakerMerino 200 Oasis Base Layer Leggings with Fly - Men's
    $78.69
    Save 25%
    compared to  $105.00
    52 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
  • Sale Ends May 26
    SmartwoolClassic Thermal Merino Base Layer Bottoms - Women's Plus Sizes
    $86.19 - $89.99
    Save 25%
    compared to  $115.00 - $120.00
    19 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Plus
  • Sale Ends May 26
    SmartwoolIntraknit Thermal Merino Base Layer Bottoms - Women's
    $97.49
    Save 25%
    compared to  $130.00
    27 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
  • Sale Ends May 26
    Icebreaker125 ZoneKnit Base Layer Leggings - Men's
    $93.69
    Save 25%
    compared to  $125.00
    0 reviews
    Underwear Weight:
    Ultralightweight
    Size Type:
    Regular, Big
  • Sale Ends May 29
    Ortovox185 Rock'n'wool Short Base Layer Pants - Men's
    $79.99
    Save 20%
    compared to  $100.00
    5 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
  • Sale Ends May 26
    SmartwoolIntraknit Active Base Layer Bottoms - Women's
    $82.49
    Save 25%
    compared to  $110.00
    5 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
  • Sale Ends May 26
    SmartwoolIntraknit Thermal Merino Base Layer Bottoms - Men's
    $97.49
    Save 25%
    compared to  $130.00
    21 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
  • Sale Ends May 26
    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 May 26
    Top Rated
    REI Co-opMerino Midweight Base Layer Bottoms - Kids'
    $34.89
    Save 30%
    compared to  $49.95
    15 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
1–30 of 73 products
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