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Base Layer Bottoms

(161 products)
Products (161)
Sort: Best Match
    REI Co-opMidweight Base Layer Bottoms - Men's
    $54.95
    88 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big, Tall
    REI Co-opMerino 185 Base Layer Bottoms - Men's
    $79.95
    138 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    Top Rated
    SmartwoolClassic Thermal Merino Base Layer Bottoms - Men's
    $115.00
    628 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    SmartwoolClassic Thermal Merino Base Layer Bottoms - Women's
    $115.00
    745 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    tasc PerformanceElevation Merino Base Layer Bottoms - Women's
    $49.73 - $54.73
    Save 30% - 37%
    compared to  $79.00
    Save up to 30% extra on your REI Outlet purchase, thru 12/16.
    58 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    REI OUTLET
    REI Co-opMerino 185 Base Layer Bottoms - Women's
    $79.95
    111 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    Top Rated
    REI Co-opHeavyweight Merino Base Layer Bottoms - Men's
    $99.95
    10 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big, Tall
    REI Co-opMidweight Base Layer Tights - Women's
    $54.95
    109 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Plus, Petite
    Top Rated
    PatagoniaCapilene Midweight Base Layer Bottoms - Men's
    $89.00
    58 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    Top Rated
    IcebreakerMerino 200 Oasis Base Layer Leggings with Fly - Men's
    $105.00
    66 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    Top Rated
    Arc'teryxRho Insulated 3/4 Base Layer Bottoms - Men's
    $159.73
    Save 20%
    compared to  $200.00
    Save up to 30% extra on your REI Outlet purchase, thru 12/16.
    12 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big
    REI OUTLET
    Top Rated
    Arc'teryxKyanite Base Layer Bottoms - Women's
    $96.73
    Save 19%
    compared to  $120.00
    Save up to 30% extra on your REI Outlet purchase, thru 12/16.
    19 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    REI OUTLET
    tasc PerformanceElevation Merino Base Layer Bottoms - Men's
    $34.73 - $54.73
    Save 30% - 56%
    compared to  $79.00
    Save up to 30% extra on your REI Outlet purchase, thru 12/16.
    37 reviews with an average rating of 3.9 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    REI OUTLET
    Top Rated
    Icebreaker260 Merino Tech Thermal Leggings with Fly - Men's
    $125.00
    66 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big
    Top Rated
    REI Co-opHeavyweight Merino Base Layer Bottoms - Women's
    $99.95
    26 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Plus
    Top Rated
    REI Co-opLightweight Base Layer Bottoms - Men's
    $39.95
    19 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big, Tall
    SmartwoolClassic All-Season Merino Base Layer Bottoms - Men's
    $90.00
    21 reviews with an average rating of 4.1 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    Arc'teryxRho Boot Cut Base Layer Bottoms - Women's
    $72.73
    Save 19%
    compared to  $90.00
    Save up to 30% extra on your REI Outlet purchase, thru 12/16.
    1 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    IcebreakerMerino 200 Oasis Thermal Leggings - Women's
    $105.00
    79 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Plus
    SmartwoolClassic All-Season Merino Base Layer Bottoms - Women's
    $90.00
    19 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    New arrival
    Terramar2.0 Thermolator Base Layer Pants - Men's
    $32.73
    Save 27%
    compared to  $45.00
    Save up to 30% extra on your REI Outlet purchase, thru 12/16.
    0 reviews
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    REI OUTLET
    Hot ChillysOriginals Print Base Layer Pants - Kids'
    $39.73
    Save 27%
    compared to  $55.00
    Save up to 30% extra on your REI Outlet purchase, thru 12/16.
    0 reviews
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    REI Co-opMerino 185 Base Layer Bottoms - Men's Tall Sizes
    $79.95
    13 reviews with an average rating of 3.9 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Tall, Big
    Kari TraaKlara High-Waisted Base Layer Pants - Women's
    $62.73 - $66.73
    Save 25% - 30%
    compared to  $90.00
    Save up to 30% extra on your REI Outlet purchase, thru 12/16.
    1 reviews with an average rating of 3.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
    Top Rated
    Icebreaker260 Tech High-Rise Base Layer Leggings - Women's
    $125.00
    20 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    Kari TraaEdith Base Layer Pants - Women's
    $74.73
    Save 25%
    compared to  $100.00
    Save up to 30% extra on your REI Outlet purchase, thru 12/16.
    3 reviews with an average rating of 3.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    Arc'teryxRho LT Base Layer Bottoms - Men's
    $100.00
    54 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    SmartwoolIntraknit Thermal Merino Base Layer Bottoms - Men's
    $130.00
    27 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    Top Rated
    REI Co-opMidweight Base Layer Bottoms - Kids'
    $34.95
    9 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    SmartwoolIntraknit Thermal Merino Base Layer Bottoms - Women's
    $130.00
    28 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
1–30 of 161 products
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