Skip to search results
loaded 24 results

Women's Lightweight Base Layer Bottoms

(24 products)
Products (24)
Sort: Best Match
    REI Co-opMerino 185 Base Layer Bottoms - Women's
    $79.95
    119 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    Top Rated
    REI Co-opLightweight Base Layer Tights - Women's
    $44.95
    10 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus, Petite
    Arc'teryxRho Base Layer Bottoms - Women's
    $24.83 - $100.00
    37 reviews with an average rating of 4.1 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    tasc PerformanceElevation Merino Base Layer Bottoms - Women's
    $54.73
    Save 30%
    compared to  $79.00
    Use code OUTFEB26 for $20 off when you spend $100+ at REI Outlet.
    65 reviews with an average rating of 4.1 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    REI OUTLET
    Free CountryForce Grid Fleece Base Layer Bottoms - Women's
    $34.73
    Save 36%
    compared to  $55.00
    Use code OUTFEB26 for $20 off when you spend $100+ at REI Outlet.
    11 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
    SmartwoolClassic All-Season Merino Base Layer Bottoms - Women's
    $100.00
    23 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    REI Co-opMerino 185 Base Layer Bottoms - Women's Plus Sizes
    $49.93
    Save 37%
    compared to  $79.95
    11 reviews with an average rating of 3.9 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Plus
    Kari TraaKlara High-Waisted Base Layer Pants - Women's
    $62.73 - $66.73
    Save 25% - 30%
    compared to  $90.00
    Use code OUTFEB26 for $20 off when you spend $100+ at REI Outlet.
    13 reviews with an average rating of 3.8 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
    HalfdaysSophia Base Layer Leggings - Women's
    $95.00
    123 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    Free CountryMicrotech Heat Cocarber Base Layer Bottoms - Women's
    $39.73
    Save 33%
    compared to  $60.00
    Use code OUTFEB26 for $20 off when you spend $100+ at REI Outlet.
    10 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
    Wild RyeJane Leggings - Women's
    $52.73
    Save 51%
    compared to  $109.00
    Use code OUTFEB26 for $20 off when you spend $100+ at REI Outlet.
    5 reviews with an average rating of 3.6 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
    Kari TraaSval Base Layer Pants - Women's
    $49.73
    Save 28%
    compared to  $70.00
    Use code OUTFEB26 for $20 off when you spend $100+ at REI Outlet.
    2 reviews with an average rating of 3.5 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
    Kari TraaLucie Base Layer Pants - Women's
    $58.73
    Save 26%
    compared to  $80.00
    Use code OUTFEB26 for $20 off when you spend $100+ at REI Outlet.
    6 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
    SmartwoolIntraknit Thermal Merino Base Layer Bottoms - Women's
    $150.00
    29 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    KUHLReactiv Lite Grid Base Layer Bottoms - Women's
    $73.93
    Save 25%
    compared to  $99.00
    2 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    Top Rated
    Kari TraaRose High-Waisted Base Layer Pants - Women's
    $90.93 - $120.00
    14 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    Kari TraaFryd Base Layer Pants - Women's
    $40.73
    Save 25% - 32%
    compared to  $55.00 - $60.00
    Use code OUTFEB26 for $20 off when you spend $100+ at REI Outlet.
    18 reviews with an average rating of 3.4 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    REI OUTLET
    Kari TraaFierce Base Layer Pants - Women's
    $46.73
    Save 29%
    compared to  $66.00
    Use code OUTFEB26 for $20 off when you spend $100+ at REI Outlet.
    0 reviews
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
    Wild RyeBassett LITE Base Layer Leggings - Women's
    $70.93
    Save 20%
    compared to  $89.00
    0 reviews
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    Kari TraaKaia Base Layer Set - Women's
    $90.93
    Save 30%
    compared to  $130.00
    3 reviews with an average rating of 4.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
  • The R E I Co-op Mastercard. Earn 15% total R E I rewards.

    Earn 15% in total rewards

    Get 5% on all REI Co-op purchases plus the 10% Co-op Member Reward you earn on eligible full-price purchases.



    Terms apply
    Kari TraaFryd Base Layer Pants - Women's
    $40.73
    Save 32%
    compared to  $60.00
    Use code OUTFEB26 for $20 off when you spend $100+ at REI Outlet.
    14 reviews with an average rating of 3.7 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
    RHONEApres Houndstooth Seamless Base Layer Leggings - Women's
    $128.00
    3 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    FP MovementMyoko Base Layer Bottoms - Women's
    $95.93
    Save 25%
    compared to  $128.00
    0 reviews
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    FP MovementMyoko Base Layer Bottoms - Women's
    $95.93
    Save 25%
    compared to  $128.00
    0 reviews
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
Sort: Best Match

Related Expert Advice articles