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Women's Lightweight Base Layer Tops

(42 products)
Products (42)
Sort: Best Match
    REI Co-opMerino 185 Long-Sleeve Crew Base Layer Top - Women's
    $63.69
    Save 25%
    compared to  $84.95
    Sale Ends Nov 23
    4 reviews with an average rating of 3.8 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    REI Co-opLightweight Long-Sleeve Crew Base Layer Top - Women's
    $29.93 - $33.69
    Save 25% - 33%
    compared to  $44.95
    Top Rated
    51 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    SmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Women's
    $74.99
    Save 25%
    compared to  $100.00
    Sale Ends Nov 30
    Top Rated
    516 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    REI Co-opMerino 185 Half-Zip Base Layer Top - Women's
    $67.39
    Save 25%
    compared to  $89.95
    Sale Ends Nov 23
    Top Rated
    10 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    REI Co-opMerino 185 Crew Base Layer Top - Women's
    $56.19
    Save 25%
    compared to  $74.95
    Sale Ends Nov 23
    Top Rated
    9 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    tasc PerformanceElevation Merino T-Shirt - Women's
    $54.73
    Save 30%
    compared to  $79.00
    REI Outlet
    98 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    REI Co-opLightweight Half-Zip Base Layer Top - Women's
    $34.93 - $37.39
    Save 25% - 30%
    compared to  $49.95
    Top Rated
    22 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    SmartwoolClassic All-Season Merino T-Shirt - Women's
    $71.19
    Save 25%
    compared to  $95.00
    406 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    IcebreakerSiren Sweetheart Long Underwear Top - Women's
    $67.49
    Save 25%
    compared to  $90.00
    Sale Ends Nov 30
    Top Rated
    11 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI Co-opLightweight Crew Base Layer Top - Women's
    $24.93 - $26.19
    Save 25% - 28%
    compared to  $34.95
    Top Rated
    44 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    Kari TraaFryd Long-Sleeve Base Layer Top - Women's
    $44.97
    Save 30%
    compared to  $65.00
    REI Outlet
    29 reviews with an average rating of 4.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    IcebreakerMerino 175 Everyday Long Sleeve Half-Zip Thermal Base Layer Top - Women's
    $74.97
    Save 28%
    compared to  $105.00
    REI Outlet
    1 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    HalfdaysClare Lightweight Merino Base Layer Top - Women's
    $115.00
    Top Rated
    6 reviews with an average rating of 4.8 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    Free CountryMicrotech Heat Cocarber Base Layer Top - Women's - Package of 2
    $42.73
    Save 18%
    compared to  $52.50
    REI Outlet
    Top Rated
    12 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    Arc'teryxRho Zip Neck Base Layer Top - Women's
    $120.00
    30 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    Arc'teryxSatoro Merino Wool Crew Neck Long-Sleeve Base Layer Top - Women's
    $95.73
    Save 20%
    compared to  $120.00
    REI Outlet
    Top Rated
    21 reviews with an average rating of 4.8 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    PatagoniaCapilene Lightweight Crew Base Layer Top - Women's
    $75.00
    0 reviews
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    Helly HansenHH Durawool High Neck Long-Sleeve Base Layer Top - Women's
    $74.73
    Save 25%
    compared to  $100.00
    REI Outlet
    0 reviews
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    Kari TraaSmekker Half-Zip Base Layer Top - Women's
    $140.00
    23 reviews with an average rating of 4.1 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    Arc'teryxRho Crew Neck Long-Sleeve Base Layer Top - Women's
    $100.00
    Top Rated
    8 reviews with an average rating of 4.8 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    Icebreaker200 Oasis Long-Sleeve Half-Zip Base Layer Top - Women's
    $97.49
    Save 25%
    compared to  $130.00
    Sale Ends Nov 30
    Top Rated
    55 reviews with an average rating of 4.8 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    PatagoniaCapilene Lightweight Zip-Neck Base Layer Top - Women's
    $85.00
    0 reviews
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    Kari TraaSmekker Long-Sleeve Base Layer Top - Women's
    $130.00
    0 reviews
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    Outdoor ResearchAlpine Onset Merino 150 Base Layer Hoodie - Women's
    $82.97
    Save 30%
    compared to  $119.00
    REI Outlet
    0 reviews
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    Outdoor ResearchAlpine Onset Merino 150 Half-Zip Base Layer Top - Women's
    $74.97
    Save 31%
    compared to  $109.00
    REI Outlet
    0 reviews
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    Kari TraaLekker Long-Sleeve Base Layer Top - Women's
    $44.73
    Save 31%
    compared to  $65.00
    REI Outlet
    1 reviews with an average rating of 4.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
  • Text reads ‘happening now!’ over an image of the R E I Co-op Mastercard.

    $130 in value

    Get $30 in card rewards when you’re approved by Nov 23. Plus, earn a $100 REI gift card after your first qualifying purchase.

    Terms apply

    Arc'teryxRho Hoody Base Layer Top - Women's
    $120.00
    1 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    Arc'teryxSatoro Merino Wool Base Layer Hoody - Women's
    $140.00
    Top Rated
    18 reviews with an average rating of 4.8 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    Black DiamondSolution 150 Merino Base Layer Crew Top - Women's
    $66.67
    Save 50%
    compared to  $135.00
    REI Outlet
    Top Rated
    23 reviews with an average rating of 4.9 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    SwixRaceX Classic Long-Sleeve Base Layer Top - Women's
    $39.73
    Save 33%
    compared to  $60.00
    REI Outlet
    New arrival
    0 reviews
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
1–30 of 42 products
Sort: Best Match
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