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Men's Base Layer Bottoms

(56 products)
Products (56)
Sort: Best Match
  • Sale Ends Dec 9

    REI Co-opMerino 185 Base Layer Bottoms - Men's

    $55.89
    Save 30%
    compared to  $79.95
    103 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
  • Sale Ends Dec 9

    REI Co-opMidweight Base Layer Bottoms - Men's

    $38.39
    Save 30%
    compared to  $54.95
    68 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big, Tall
    Top Rated

    SmartwoolClassic Thermal Merino Base Layer Bottoms - Men's

    $115.00
    574 reviews with an average rating of 4.8 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big

    REI Co-opLightweight Base Layer Bottoms - Men's

    $27.93
    Save 30%
    compared to  $39.95
    77 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
  • Sale Ends Dec 9

    REI Co-opHeavyweight Merino Base Layer Bottoms - Men's

    $69.89
    Save 30%
    compared to  $99.95
    4 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big, Tall
  • R E I Co-op brand base layer top and tights.

    30% off all REI Co‑op brand base layers

    SmartwoolClassic All-Season Merino Base Layer Bottoms - Men's

    $90.00
    9 reviews with an average rating of 3.9 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    Top Rated

    PatagoniaCapilene Midweight Base Layer Bottoms - Men's

    $89.00
    51 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
  • Sale Ends Dec 9
    Top Rated

    IcebreakerMerino 200 Oasis Base Layer Leggings with Fly - Men's

    $78.69
    Save 25%
    compared to  $105.00
    26 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
  • Sale Ends Dec 9

    Icebreaker260 Merino Tech Thermal Leggings with Fly - Men's

    $93.69
    Save 25%
    compared to  $125.00
    19 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big

    tasc PerformanceElevation Merino Base Layer Bottoms - Men's

    $54.73
    Save 30%
    compared to  $79.00
    21 reviews with an average rating of 4.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    REI OUTLET

    SmartwoolClassic All-Season Merino 3/4 Base Layer Bottoms - Men's

    $75.00
    2 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    Top Rated

    Arc'teryxRho Heavyweight Base Layer Bottoms - Men's

    $120.00
    45 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big
  • Sale Ends Today

    Helly HansenLIFA Merino Midweight 3/4 Base Layer Pants - Men's

    $59.99
    Save 25%
    compared to  $80.00
    0 reviews
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big

    Free CountryForce Grid Fleece Base Layer Bottoms - Men's

    $29.73
    Save 33%
    compared to  $45.00
    1 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    REI OUTLET
  • Sale Ends Dec 9

    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

    Mountain HardwearMountain Stretch Base Layer Tights - Men's

    $55.73
    Save 25%
    compared to  $75.00
    3 reviews with an average rating of 4.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    REI OUTLET
    Top Rated

    Arc'teryxRho LT Base Layer Bottoms - Men's

    $100.00
    31 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big

    Terramar3.0 Thermawool Heavyweight Thermal Pants - Men's

    $49.73
    Save 28%
    compared to  $70.00
    2 reviews with an average rating of 3.0 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Big
    REI OUTLET

    PatagoniaCapilene Thermal Weight Long-Underwear Bottoms - Men's

    $99.00
    11 reviews with an average rating of 3.7 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big

    SmartwoolIntraknit Thermal Merino Base Layer Bottoms - Men's

    $130.00
    15 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    Top Rated

    SmartwoolClassic Thermal Merino 3/4 Base Layer Bottoms - Men's

    $105.00
    77 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
  • Sale Ends Today

    Helly HansenLifa Merino Midweight Base Layer Pants - Men's

    $74.99
    Save 25%
    compared to  $100.00
    0 reviews
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
  • Sale Ends Dec 9

    Icebreaker200 Oasis 3/4 Base Layer Bottoms - Men's

    $71.19
    Save 25%
    compared to  $95.00
    3 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big

    Arms of Andes160 Ultralight Alpaca Wool Base Layer Leggings - Men's

    $85.00
    0 reviews
    Underwear Weight:
    Ultralightweight
    Size Type:
    Regular, Big

    Arms of Andes300 Lightweight Alpaca Wool Base Layer Leggings - Men's

    $105.00
    11 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
  • Sale Ends Dec 4

    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

    Free CountryMicrotech Heat Cocaber Base Layer Bottoms - Men's

    $26.73
    Save 33%
    compared to  $40.00
    0 reviews
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    REI OUTLET
  • Sale Ends Dec 4

    Ortovox120 Comp Light Short Base Layer Pants - Men's

    $55.99
    Save 20%
    compared to  $70.00
    3 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big

    SmartwoolIntraknit Active Base Layer Bottoms - Men's

    $110.00
    1 reviews with an average rating of 3.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big

    Arc'teryxRho Merino Wool Base Layer Bottoms - Men's

    $120.00
    3 reviews with an average rating of 3.7 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
1–30 of 56 products
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