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Women's Base Layer Bottoms

(86 products)
Products (86)
Sort: Best Match
    SmartwoolClassic Thermal Merino Base Layer Bottoms - Women's
    $81.73
    Save 28%
    compared to  $115.00
    Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
    247 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Plus, Regular
    REI OUTLET
    tasc PerformanceElevation Merino Base Layer Bottoms - Women's
    $49.73
    Save 37%
    compared to  $79.00
    Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
    53 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    REI OUTLET
    Top Rated
    REI Co-opHeavyweight Merino Base Layer Bottoms - Women's
    $29.83 - $69.93
    Save 30% - 70%
    compared to  $99.95
    18 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Plus
    SmartwoolIntraknit Active Base Layer Bottoms - Women's
    $79.93
    Save 27%
    compared to  $110.00
    6 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    CraftActive Intensity Base Layer Pants - Women's
    $31.73
    Save 42%
    compared to  $54.95
    Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
    13 reviews with an average rating of 2.9 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
    Top Rated
    REI Co-opLightweight Base Layer Tights - Women's
    $39.95
    7 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    SmartwoolClassic Thermal Merino Base Layer Bottoms - Women's
    $110.00 - $115.00
    736 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    Top Rated
    Nani SwimwearUinta Base Layer Bottoms - Women's
    $29.83
    Save 60%
    compared to  $75.00
    7 reviews with an average rating of 4.9 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    IcebreakerMerino 200 Oasis Thermal Base Layer Leggings - Women's
    $78.73
    Save 25%
    compared to  $105.00
    Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
    68 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Plus
    REI OUTLET
    REI Co-opMerino 185 Base Layer Bottoms - Women's
    $79.95
    104 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI Co-opLightweight Base Layer Tights - Women's Plus Sizes
    $9.83
    Save 75%
    compared to  $39.95
    12 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Plus
    REI Co-opMidweight Base Layer Tights - Women's
    $54.95
    91 reviews with an average rating of 4.1 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Plus, Petite
    SmartwoolClassic All-Season Merino Base Layer Bottoms - Women's
    $90.00
    16 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    CraftCore Dry Active Comfort Base Layer Pants - Women's
    $29.73
    Save 33%
    compared to  $44.95
    Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
    0 reviews
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    SmartwoolIntraknit Active Base Layer Bottoms - Women's
    $76.73
    Save 30%
    compared to  $110.00
    Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
    1 reviews with an average rating of 4.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    SmartwoolIntraknit Thermal Merino Base Layer Bottoms - Women's
    $92.73
    Save 28%
    compared to  $130.00
    Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
    27 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
    Terramar2.0 Cloud Nine Midweight Base Layer Capri Pants - Women's
    $28.73
    Save 28%
    compared to  $40.00
    Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
    1 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    BurtonMidweight Base Layer Pants - Women's
    $19.83
    Save 69%
    compared to  $64.95
    0 reviews
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    PatagoniaCapilene Midweight Base Layer Bottoms - Women's
    $89.00
    25 reviews with an average rating of 4.1 out of 5 stars
    Size Type:
    Regular, Plus
    Free CountryForce Grid Fleece Base Layer Bottoms - Women's
    $34.73
    Save 36%
    compared to  $55.00
    Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
    3 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
    Kari TraaSara Base Layer Pants - Women's
    $100.00
    2 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    New arrival
    Kari TraaSaga Base Layer Pants - Women's
    $110.00
    0 reviews
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    New arrival
    Kari TraaAnna High-Waist Base Layer Pants - Women's
    $100.00
    0 reviews
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    Arc'teryxRho Boot Cut Base Layer Bottoms - Women's
    $72.73
    Save 19%
    compared to  $90.00
    Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
    1 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    Wild RyeJane Leggings - Women's
    $64.73
    Save 40%
    compared to  $109.00
    Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
    3 reviews with an average rating of 3.3 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
    Arc'teryxRho Base Layer Bottoms - Women's
    $79.73
    Save 20%
    compared to  $100.00
    Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
    12 reviews with an average rating of 4.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Plus
    REI OUTLET
    Kari TraaLucie Base Layer Pants - Women's
    $59.73
    Save 25%
    compared to  $80.00
    Members use code OUT4JUL25 for $20 off $100+ at REI Outlet
    1 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
    REI Co-opMerino 185 Base Layer Bottoms - Women's Plus Sizes
    $79.95
    9 reviews with an average rating of 4.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Plus
    SmartwoolClassic All-Season Merino Base Layer Bottoms - Women's
    $33.83
    Save 62%
    compared to  $90.00
    95 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Plus
    Arc'teryxRho Base Layer Bottoms - Women's
    $100.00
    29 reviews with an average rating of 4.1 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
1–30 of 86 products
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