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REI Co-op Underwear

(57 products)
Products (57)
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    REI Co-opMerino Boxer Briefs - Men's
    $39.95
    124 reviews with an average rating of 4.2 out of 5 stars
    Size Type:
    Regular, Big
    REI Co-opActive Briefs - Women's
    $19.95
    45 reviews with an average rating of 4.1 out of 5 stars
    Size Type:
    Regular, Plus
    Top Rated
    REI Co-opMerino Bralette
    $44.95
    208 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 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-opMerino Bikini Underwear - Women's
    $27.95
    65 reviews with an average rating of 4.1 out of 5 stars
    Size Type:
    Regular, Plus
    REI Co-opMerino Boxers - Men's
    $39.95
    87 reviews with an average rating of 4.4 out of 5 stars
    Size Type:
    Regular, Big
    REI Co-opEveryday Boxer Briefs - Men's
    $24.95
    167 reviews with an average rating of 4.1 out of 5 stars
    Size Type:
    Regular, Big
    REI Co-opActive Bikini Underwear - Women's
    $19.95
    61 reviews with an average rating of 3.4 out of 5 stars
    Size Type:
    Regular, Plus
    REI Co-opMerino 185 Base Layer Bottoms - Men's
    $84.95
    2 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big, Tall
    Top Rated
    REI Co-opLightweight Long-Sleeve Crew Base Layer Top - Men's
    $44.95
    51 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    REI Co-opEveryday Boxers - Men's
    $24.95
    151 reviews with an average rating of 4.2 out of 5 stars
    Size Type:
    Regular, Big
    Top Rated
    REI Co-opLightweight Crew Base Layer Top - Women's
    $34.95
    43 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    Top Rated
    REI Co-opMerino 185 Crew Base Layer Top - Women's
    $74.95
    5 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    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
    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
    REI Co-opMerino 185 Long-Sleeve Crew Base Layer Top - Men's
    $84.95
    4 reviews with an average rating of 4.8 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big, Tall
    REI Co-opMerino 185 Long-Sleeve Crew Base Layer Top - Women's
    $84.95
    3 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    Top Rated
    REI Co-opLightweight Base Layer Bottoms - Men's
    $44.95
    31 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big, Tall
    REI Co-opMerino 185 Half-Zip Base Layer Top - Women's
    $89.95
    2 reviews with an average rating of 4.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    REI Co-opMidweight Half-Zip Base Layer Top - Women's
    $69.95
    3 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Plus
    REI Co-opMerino 185 Base Layer Bottoms - Women's
    $84.95
    2 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Petite, Regular, Plus
    REI Co-opMerino 185 Half-Zip Base Layer Top - Men's
    $89.95
    2 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big, Tall
    REI Co-opMerino 185 Crew Base Layer Top - Men's
    $74.95
    2 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big, Tall
    Top Rated
    REI Co-opLightweight Half-Zip Base Layer Top - Women's
    $49.95
    20 reviews with an average rating of 4.8 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
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    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
    Top Rated
    REI Co-opMidweight Base Layer Crew Top - Kids'
    $34.95
    9 reviews with an average rating of 4.9 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI Co-opMidweight Long-Sleeve Crew Base Layer Top - Men's
    $64.95
    4 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big, Tall
    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
    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
    Top Rated
    REI Co-opMidweight Base Layer Crew Top - Toddlers'
    $17.93 - $24.95
    16 reviews with an average rating of 4.8 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
1–30 of 57 products
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