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REI Co-op Merino Wool Base Layers

(18 products)
Products (18)
Remove brand filter:REI Co-opRemove features filter:Merino WoolClear all
Sort: Best Match
    REI Co-opMerino 185 Half-Zip Base Layer Top - Women's
    $89.95
    1 reviews with an average rating of 3.0 out of 5 stars
    Underwear Weight:
    Lightweight
    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-opMerino 185 Crew Base Layer Top - Women's
    $74.95
    3 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    REI Co-opMerino 185 Base Layer Bottoms - Women's
    $84.95
    1 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Petite, Regular, Plus
    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
  • A collage of REI Co-op brand merino wool clothing on a light colored background. Ticker tape reads: ‘New design.’

    REI Co-op merino wool

    Made-for-layering styles that are naturally antimicrobial, pill resistant, moisture-wicking & quick-drying.

    REI Co-opMerino 185 Base Layer Bottoms - Men's
    $84.95
    1 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big, Tall
    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
    REI Co-opMerino 250 Base Layer Bottoms - Men's
    $104.95
    0 reviews
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big, Tall
    REI Co-opMerino 185 Base Layer Bottoms - Men's
    $29.83
    Save 62%
    compared to  $79.95
    173 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Big
    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 250 Long-Sleeve Crew Base Layer Top - Men's
    $104.95
    0 reviews
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big, Tall
    Top Rated
    REI Co-opMerino Midweight Base Layer Bottoms - Kids'
    $49.95
    16 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI Co-opMerino 250 Base Layer Bottoms - Women's
    $104.95
    0 reviews
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Plus
    Top Rated
    REI Co-opMerino Midweight Base Layer Crew Top - Kids'
    $49.95
    32 reviews with an average rating of 4.8 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI Co-opMerino 250 Half-Zip Base Layer Top - Men's
    $109.95
    0 reviews
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big, Tall
    REI Co-opMerino 250 High-Rise Base Layer Leggings - Women's
    $104.95
    0 reviews
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    REI Co-opMerino 250 Half-Zip Base Layer Top - Women's
    $109.95
    0 reviews
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Plus
  • The R E I Co-op Mastercard. Double rewards, double adventure.

    Earn 2x rewards

    Thru 9/28 only, REI Co-op® Mastercard® cardmembers earn 10% in card rewards on all REI purchases—don't wait! Terms apply.

Sort: Best Match
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