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Women's Underwear

(337 products)
Products (337)
Sort: Best Match
    Top Rated
    SmartwoolClassic Thermal Merino Crew Base Layer Top - Women's
    $125.00
    1208 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Plus
    SmartwoolClassic Thermal Merino Base Layer Bottoms - Women's
    $125.00
    758 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI Co-opMidweight Base Layer Tights - Women's
    $54.95
    119 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Plus, Petite
    REI Co-opHeavyweight Merino Base Layer Bottoms - Women's
    $99.95
    29 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Plus
    REI Co-opMidweight Long-Sleeve Base Layer Top - Women's
    $54.95
    312 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Plus
    Free CountryForce Grid Fleece Base Layer Top - Women's
    $34.73
    Save 36%
    compared to  $55.00
    5 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    REI OUTLET
    tasc PerformanceElevation Merino T-Shirt - Women's
    $54.73
    Save 30%
    compared to  $79.00
    89 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    REI OUTLET
    Boody Eco WearPadded Shaper Bra - Package of 2
    $35.73
    Save 18%
    compared to  $43.95
    23 reviews with an average rating of 4.0 out of 5 stars
    Bra Support:
    Medium Impact
    Support Style:
    Compression
    Fabric:
    80% viscose made from bamboo/13% nylon/7% spandex
    REI OUTLET
    tasc PerformanceElevation Merino Base Layer Bottoms - Women's
    $54.73
    Save 30%
    compared to  $79.00
    63 reviews with an average rating of 4.1 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
    Top Rated
    Free CountryMicrotech Heat Cocarber Base Layer Top - Women's
    $39.73
    Save 33%
    compared to  $60.00
    8 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    REI OUTLET
    REI Co-opHeavyweight Merino Long-Sleeve Base Layer Crew Top - Women's
    $99.95
    41 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Plus
    Kari TraaKlara High-Waisted Base Layer Pants - Women's
    $62.73 - $66.73
    Save 25% - 30%
    compared to  $90.00
    13 reviews with an average rating of 3.8 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
    Arc'teryxRho Base Layer Bottoms - Women's
    $24.83 - $100.00
    34 reviews with an average rating of 4.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    Kari TraaEdith Half-Zip Base Layer Top - Women's
    $81.73
    Save 25%
    compared to  $110.00
    8 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    Top Rated
    SmartwoolClassic Thermal Merino Quarter-Zip Base Layer Top - Women's
    $130.00
    54 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Plus
    REI Co-opActive Thong Underwear - Women's
    $6.83 - $16.95
    24 reviews with an average rating of 4.3 out of 5 stars
    Size Type:
    Regular, Plus
    Top Rated
    Beyond YogaSpacedye Lift Your Spirits Bra
    $45.93 - $68.00
    794 reviews with an average rating of 4.7 out of 5 stars
    Bra Support:
    Medium Impact
    Support Style:
    Encapsulation
    Fabric:
    87% polyester/13% spandex
    REI Co-opMidweight Base Layer Half-Zip Top - Women's
    $59.95
    188 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Plus
    Top Rated
    REI Co-opLightweight Long-Sleeve Crew Base Layer Top - Women's
    $44.95
    29 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    SENIQWool Sculpt Merino Base Layer Leggings - Women's
    $128.00
    0 reviews
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
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    Terms apply
    REI Co-opActive Pursuits Crop Tank Top - Women's
    $21.83 - $44.95
    11 reviews with an average rating of 3.8 out of 5 stars
    Bra Support:
    Low Impact
    Support Style:
    Compression
    Fabric:
    86% recycled polyester/14% spandex (bluesign approved)
    Free CountryForce Grid Fleece Base Layer Bottoms - Women's
    $34.73
    Save 36%
    compared to  $55.00
    9 reviews with an average rating of 4.3 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
    5 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
    SENIQWool Sculpt Merino Mock-Neck Long-Sleeve Base Layer Shirt - Women's
    $128.00
    2 reviews with an average rating of 3.0 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    Top Rated
    IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Women's
    $105.00 - $120.00
    177 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Plus
    ExOfficioGNG 2.0 Bra
    $19.73
    Save 24%
    compared to  $26.00
    524 reviews with an average rating of 3.9 out of 5 stars
    Bra Support:
    Low Impact
    Support Style:
    Encapsulation
    Fabric:
    89% nylon/11% elastane jersey
    REI OUTLET
    Kari TraaSval Base Layer Pants - Women's
    $49.73
    Save 28%
    compared to  $70.00
    1 reviews with an average rating of 4.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
  • Sale Ends Today
    Helly HansenLIFA Merino Midweight Balaclava Base Layer Hoodie - Women's
    $96.73
    Save 35%
    compared to  $150.00
    2 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    REI Co-opMerino 185 Long-Sleeve Base Layer Top - Women's
    $79.95
    236 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    Helly HansenHH Durawool Crew Long-Sleeve Shirt - Women's
    $64.73
    Save 28%
    compared to  $90.00
    0 reviews
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
Sort: Best Match

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