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Quick Drying Base Layer Bottoms

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Products (48)
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  • Sale Ends May 25
    REI Co-opMerino 185 Base Layer Bottoms - Women's
    $59.89
    Save 25%
    compared to  $79.95
    122 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
  • Sale Ends May 25
    Top Rated
    REI Co-opLightweight Base Layer Tights - Women's
    $33.69
    Save 25%
    compared to  $44.95
    11 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus, Petite
  • Sale Ends May 25
    REI Co-opMerino 185 Base Layer Bottoms - Men's
    $59.89
    Save 25%
    compared to  $79.95
    169 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
  • Sale Ends May 25
    Top Rated
    REI Co-opLightweight Base Layer Bottoms - Men's
    $33.69
    Save 25%
    compared to  $44.95
    28 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big, Tall
  • Sale Ends May 25
    Top Rated
    REI Co-opHeavyweight Merino Base Layer Bottoms - Men's
    $74.89
    Save 25%
    compared to  $99.95
    21 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big, Tall
  • Sale Ends May 25
    SmartwoolClassic All-Season Merino 3/4 Base Layer Bottoms - Men's
    $63.69
    Save 25%
    compared to  $85.00
    5 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
  • Sale Ends May 25
    Top Rated
    IcebreakerMerino 200 Oasis Thermal Leggings - Women's
    $89.99
    Save 25%
    compared to  $120.00
    89 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Plus
  • Sale Ends May 25
    Top Rated
    IcebreakerMerino 200 Oasis Base Layer Leggings with Fly - Men's
    $89.99
    Save 25%
    compared to  $120.00
    87 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    Kari TraaKlara High-Waisted Base Layer Pants - Women's
    $62.73
    Save 30%
    compared to  $90.00
    14 reviews with an average rating of 3.9 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
    REI Co-opHeavyweight Merino Base Layer Bottoms - Women's
    $29.83 - $74.89
    Save 25% - 70%
    compared to  $99.95
    34 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Plus
  • Sale Ends May 25
    Top Rated
    Icebreaker260 Tech High-Rise Base Layer Leggings - Women's
    $93.69
    Save 25%
    compared to  $125.00
    24 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
  • Sale Ends May 21
    Kari TraaRose Light High-Waisted Base Layer Pants - Women's
    $69.73
    Save 36%
    compared to  $110.00
    3 reviews with an average rating of 4.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
  • Sale Ends May 25
    SmartwoolIntraknit AS Merino Base Layer Bottoms - Men's
    $93.69
    Save 25%
    compared to  $125.00
    2 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
  • Sale Ends May 25
    Top Rated
    Kari TraaRose High-Waisted Base Layer Pants - Women's
    $83.99
    Save 30%
    compared to  $120.00
    14 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    SmartwoolIntraknit Merino 3/4 Base Layer Bottoms - Women's
    $89.73
    Save 25%
    compared to  $120.00
    0 reviews
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    Arc'teryxRho Base Layer Bottoms - Women's
    $59.83 - $100.00
    38 reviews with an average rating of 4.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
  • Sale Ends May 25
    Kari TraaFryd Base Layer Pants - Women's
    $37.73
    Save 31% - 37%
    compared to  $55.00 - $60.00
    18 reviews with an average rating of 3.4 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    REI OUTLET
  • Sale Ends May 25
    IcebreakerMerino 200 Oasis High-Rise Base Layer Leggings - Women's
    $97.49
    Save 25%
    compared to  $130.00
    7 reviews with an average rating of 4.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
  • Sale Ends May 25
    Icebreaker260 Tech Base Layer Leggings - Women's
    $93.69
    Save 25%
    compared to  $125.00
    34 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Plus
  • Sale Ends May 25
    Top Rated
    Icebreaker260 Merino Tech Thermal Leggings with Fly - Men's
    $104.99
    Save 25%
    compared to  $140.00
    73 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big
  • Sale Ends May 25
    SmartwoolIntraknit AS Merino Base Layer Bottoms - Women's
    $93.69
    Save 25%
    compared to  $125.00
    0 reviews
    Underwear Weight:
    Midweight
    Size Type:
    Regular
  • Sale Ends May 25
    Kari TraaRose Capri High-Waist Base Layer Bottoms - Women's
    $69.99
    Save 36%
    compared to  $110.00
    3 reviews with an average rating of 4.0 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
  • Sale Ends May 25
    REI Co-opMerino 185 Base Layer Bottoms - Men's Tall Sizes
    $59.89
    Save 25%
    compared to  $79.95
    17 reviews with an average rating of 3.9 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Tall, Big
  • Sale Ends May 25
    Top Rated
    HalfdaysHallie Midweight Merino Base Layer Leggings - Women's
    $97.49
    Save 25%
    compared to  $130.00
    30 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
  • Limited time only! The R E I Co-op Mastercard.

    Get $130 in value

    When approved for the REI Co-op Mastercard by May 25, you’ll get $30 in card rewards. Plus, you can earn a $100 REI gift card after your first non-REI purchase within 60 days from account opening. Terms apply.

  • Sale Ends May 25
    Kari TraaAlma Pants - Women's
    $62.73
    Save 30%
    compared to  $90.00
    0 reviews
    Underwear Weight:
    Ultralightweight
    Size Type:
    Regular
    REI OUTLET
    Arc'teryxRho LT Base Layer Bottoms - Men's
    $59.83 - $100.00
    61 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
  • Sale Ends May 21
    Arc'teryxRho LT Base Layer Bottoms - Men's
    $69.73
    Save 30%
    compared to  $100.00
    11 reviews with an average rating of 3.9 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Big
    REI OUTLET
    PatagoniaCapilene Thermal Weight Long-Underwear Bottoms - Men's
    $78.93
    Save 20%
    compared to  $99.00
    16 reviews with an average rating of 4.1 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big
  • Sale Ends May 21
    Kari TraaSval Base Layer Pants - Women's
    $43.73
    Save 37%
    compared to  $70.00
    2 reviews with an average rating of 3.5 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
  • Sale Ends May 21
    SpraywayEffra Leggings Base Layer Bottoms - Women's
    $25.73
    Save 48%
    compared to  $49.95
    1 reviews with an average rating of 3.0 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    REI OUTLET
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