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Merino Wool Underwear

(257 products)
Products (257)
Remove features filter:Merino Wool
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    New arrival
    SmartwoolActive Boxer Briefs - Men's - Package of 2
    $54.97
    Save 31%
    compared to  $80.00
    Use code OUTSEPT26 to save $30 off $150+ at REI Outlet thru 9/21
    0 reviews
    Size Type:
    Big, Regular
    REI OUTLET
    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
    SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Women's
    $29.83 - $150.00
    137 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    SmartwoolMerino Bikini Underwear - Boxed - Women's
    $35.00
    5 reviews with an average rating of 3.0 out of 5 stars
    Size Type:
    Regular
    Top Rated
    SmartwoolClassic Thermal Merino Crew Base Layer Top - Women's
    $125.00
    473 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Plus
    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
    206 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-opMerino Boxers - Men's
    $39.95
    87 reviews with an average rating of 4.4 out of 5 stars
    Size Type:
    Regular, Big
    SmartwoolClassic All-Season Merino Base Layer Long-Sleeve Shirt - Women's
    $69.97
    Save 30%
    compared to  $100.00
    Use code OUTSEPT26 to save $30 off $150+ at REI Outlet thru 9/21
    112 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Plus
    REI OUTLET
    Top Rated
    SmartwoolClassic Thermal Merino Crew Base Layer Top - Men's
    $79.97
    Save 30%
    compared to  $115.00
    Use code OUTSEPT26 to save $30 off $150+ at REI Outlet thru 9/21
    327 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    REI OUTLET
    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
    SmartwoolClassic Thermal Merino Base Layer Bottoms - Women's
    $125.00
    295 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Midweight
    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
    Top Rated
    SmartwoolClassic Thermal Merino Quarter-Zip Base Layer Top - Women's
    $89.93 - $130.00
    91 reviews with an average rating of 4.8 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    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
    SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Women's
    $96.73
    Save 25%
    compared to  $130.00
    Use code OUTSEPT26 to save $30 off $150+ at REI Outlet thru 9/21
    137 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    SmartwoolClassic All-Season Merino T-Shirt - Men's
    $95.00
    151 reviews with an average rating of 4.1 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    Top Rated
    SmartwoolClassic Thermal Merino Base Layer Bottoms - Men's
    $125.00
    226 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Men's
    $79.93 - $120.00
    91 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    SmartwoolClassic All-Season Merino T-Shirt - Women's
    $95.00
    107 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    SmartwoolClassic Thermal Merino Crew Base Layer Top - Women's
    $84.73
    Save 26%
    compared to  $115.00
    Use code OUTSEPT26 to save $30 off $150+ at REI Outlet thru 9/21
    1 reviews with an average rating of 4.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    Staff Pick
    SmartwoolClassic Thermal Merino Crew Base Layer Top - Men's
    $125.00
    337 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    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-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
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    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 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
    Kari TraaRose Boxers - Women's
    $45.00
    0 reviews
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    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
    Top Rated
    IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Women's
    $120.00
    85 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Plus
    SmartwoolIntraknit Thermal Merino Base Layer 3/4 Bottoms - Men's
    $89.73
    Save 25%
    compared to  $120.00
    Use code OUTSEPT26 to save $30 off $150+ at REI Outlet thru 9/21
    0 reviews
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    REI OUTLET
1–30 of 257 products
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