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REI Co-op Women's Underwear

(28 products)
Products (28)
Remove brand filter:REI Co-op
Sort: Best Match
    Top Rated
    REI Co-opLightweight Long-Sleeve Crew Base Layer Top - Women's
    $44.95
    49 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    Top Rated
    REI Co-opLightweight Base Layer Tights - Women's
    $44.95
    12 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus, Petite
    REI Co-opMidweight Base Layer Tights - Women's
    $19.83
    Save 63%
    compared to  $54.95
    130 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Plus, Regular, Petite
    REI Co-opMerino Bikini Underwear - Women's
    $27.95
    64 reviews with an average rating of 4.1 out of 5 stars
    Size Type:
    Regular, Plus
    Top Rated
    REI Co-opMerino Bralette
    $44.95
    205 reviews with an average rating of 4.6 out of 5 stars
    Bra Support:
    Low Impact
    Support Style:
    Encapsulation
    Fabric:
    48% merino wool/32% TENCEL lyocell/15% nylon/5% LYCRA spandex
    REI Co-opActive Briefs - Women's
    $19.95
    44 reviews with an average rating of 4.2 out of 5 stars
    Size Type:
    Regular, Plus
    Top Rated
    REI Co-opLightweight Half-Zip Base Layer Top - Women's
    $49.95
    19 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    REI Co-opActive Hipster Underwear - Women's
    $19.95
    45 reviews with an average rating of 3.9 out of 5 stars
    Size Type:
    Regular, Plus
    REI Co-opActive Bralette 2.0
    $35.95
    138 reviews with an average rating of 4.3 out of 5 stars
    Bra Support:
    Low Impact
    Support Style:
    Encapsulation
    Fabric:
    86% polyester/14% spandex mesh
    Top Rated
    REI Co-opLightweight Crew Base Layer Top - Women's
    $34.95
    41 reviews with an average rating of 4.8 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    REI Co-opActive Bikini Underwear - Women's
    $19.95
    58 reviews with an average rating of 3.4 out of 5 stars
    Size Type:
    Regular, Plus
    REI Co-opActive Thong Underwear - Women's
    $16.95
    31 reviews with an average rating of 4.3 out of 5 stars
    Size Type:
    Regular, Plus
    REI Co-opMerino 185 Base Layer Bottoms - Women's
    $84.95
    0 reviews
    Underwear Weight:
    Lightweight
    Size Type:
    Petite, Regular, Plus
    REI Co-opMerino 185 Crew Base Layer Top - Women's
    $74.95
    2 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    REI Co-opMidweight Long-Sleeve Base Layer Top - Women's
    $19.83
    Save 63%
    compared to  $54.95
    338 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Plus
    REI Co-opMidweight Long-Sleeve Crew Base Layer Top - Women's
    $64.95
    1 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Plus
    REI Co-opMerino 185 Long-Sleeve Crew Base Layer Top - Women's
    $84.95
    1 reviews with an average rating of 3.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    REI Co-opActive Pursuits Crop Tank Top - Women's
    $21.83
    Save 51%
    compared to  $44.95
    16 reviews with an average rating of 4.1 out of 5 stars
    Bra Support:
    Low Impact
    Support Style:
    Compression
    Fabric:
    86% recycled polyester/14% spandex (bluesign approved)
    REI Co-opMidweight Half-Zip Base Layer Top - Women's
    $69.95
    1 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Plus
    REI Co-opMerino 185 Half-Zip Base Layer Top - Women's
    $89.95
    0 reviews
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    REI Co-opMerino Hipster Underwear - Women's
    $29.95
    61 reviews with an average rating of 3.9 out of 5 stars
    Size Type:
    Regular, Plus
    REI Co-opMidweight Base Layer Bottoms - Women's
    $64.95
    0 reviews
    Underwear Weight:
    Midweight
    Size Type:
    Petite, Regular, Plus
    REI Co-opMerino 250 Long-Sleeve Crew Base Layer Top - Women's
    $104.95
    0 reviews
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Plus
    REI Co-opMerino 185 Base Layer Bottoms - Women's
    $29.83
    Save 62%
    compared to  $79.95
    127 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
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    Earn 15% in Total REI Rewards

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

    New arrival
    REI Co-opMerino 250 Base Layer Bottoms - Women's
    $104.95
    0 reviews
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Plus
    REI Co-opMerino 250 High-Rise Base Layer Leggings - Women's
    $104.95
    0 reviews
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    REI Co-opMerino 185 Long-Sleeve Base Layer Top - Women's
    $39.83
    Save 50%
    compared to  $79.95
    251 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    New arrival
    REI Co-opMerino 250 Half-Zip Base Layer Top - Women's
    $109.95
    0 reviews
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Plus
Sort: Best Match
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