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Gray Men's Underwear

(55 products)
Products (55)
Remove color filter:Gray
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    REI Co-opMerino Boxer Briefs - Men's
    $39.95
    116 reviews with an average rating of 4.2 out of 5 stars
    Size Type:
    Regular, Big
    REI Co-opMerino Boxers - Men's
    $39.95
    82 reviews with an average rating of 4.3 out of 5 stars
    Size Type:
    Regular, Big
    Top Rated
    REI Co-opMidweight Base Layer Half-Zip Top - Men's
    $23.83 - $59.95
    193 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big, Tall
    Top Rated
    REI Co-opMidweight Long-Sleeve Base Layer Top - Men's
    $26.83 - $54.95
    211 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big, Tall
    Top Rated
    SmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Men's
    $53.83 - $100.00
    106 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    SmartwoolClassic Thermal Merino Base Layer Hoodie - Men's
    $108.73
    Save 25%
    compared to  $145.00
    3 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    REI OUTLET
    SaxxVolt Breathable Mesh Boxer Briefs - Men's
    $26.73
    Save 23%
    compared to  $35.00
    12 reviews with an average rating of 4.2 out of 5 stars
    Size Type:
    Regular
    REI OUTLET
    Top Rated
    PatagoniaCapilene Midweight Crew Base Layer Top - Men's
    $43.83 - $89.00
    93 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    Top Rated
    SmartwoolClassic Thermal Merino Quarter-Zip Base Layer Top - Men's
    $71.83 - $130.00
    61 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    SmartwoolIntraknit 6" Boxer Briefs - Men's
    $36.73
    Save 26%
    compared to  $50.00
    7 reviews with an average rating of 3.1 out of 5 stars
    Size Type:
    Regular, Big
    REI OUTLET
    REI Co-opLightweight Long-Sleeve Crew Base Layer Top - Men's
    $44.95
    41 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big, Tall
    Top Rated
    REI Co-opLightweight Base Layer Bottoms - Men's
    $44.95
    28 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big, Tall
    Royal RobbinsReadyDry Boxers - Men's
    $19.73
    Save 29%
    compared to  $28.00
    0 reviews
    Size Type:
    Big
    REI OUTLET
    SmartwoolClassic All-Season Merino Base Layer Bottoms - Men's
    $100.00
    30 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    Top Rated
    IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Men's
    $120.00
    225 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
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    SmartwoolClassic All-Season Merino T-Shirt - Men's
    $95.00
    109 reviews with an average rating of 4.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    REI Co-opLightweight Half-Zip Base Layer Top - Men's
    $49.95
    23 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big, Tall
    SmartwoolClassic Thermal Merino Colorblock Crew Base Layer Top - Men's
    $96.73
    Save 25%
    compared to  $130.00
    2 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    REI OUTLET
    Top Rated
    Arc'teryxRho Merino Wool Crew Neck Base Layer Top - Men's
    $69.83
    Save 41%
    compared to  $120.00
    45 reviews with an average rating of 4.8 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    SmartwoolIntraknit Thermal Merino Base Layer Hoodie - Men's
    $134.73
    Save 25%
    compared to  $180.00
    2 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    REI OUTLET
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    Top Rated
    REI Co-opLightweight Crew Base Layer Top - Men's
    $34.95
    31 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big, Tall
    NRSH2Core Lightweight Union Suit - Men's
    $109.95
    0 reviews
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    PatagoniaCapilene Midweight Zip-Neck Base Layer Top - Men's
    $99.00
    80 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    KUHLReactiv Lite Grid Quarter-Zip Base Layer Top - Men's
    $119.00
    12 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    Top Rated
    Free CountryForce Grid Fleece Base Layer Top - Men's
    $22.73
    Save 49%
    compared to  $45.00
    17 reviews with an average rating of 4.9 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Big
    REI OUTLET
    New arrival
    StanceIs It Paisley Wholester Boxer Briefs - Men's
    $24.73
    Save 29%
    compared to  $35.00
    0 reviews
    Size Type:
    Regular
    REI OUTLET
    Top Rated
    IcebreakerMerino 260 Tech Long-Sleeve Crewe Thermal Top - Men's
    $125.00
    80 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big
    Top Rated
    IcebreakerMerino 200 Oasis Base Layer Leggings with Fly - Men's
    $120.00
    86 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    Free CountryCloud Knit Crewneck Base Layer Top - Men's
    $26.73
    Save 33%
    compared to  $40.00
    10 reviews with an average rating of 4.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    REI OUTLET
    Arc'teryxRho Merino Wool Zip-Neck Base Layer Top - Men's
    $79.83
    Save 42%
    compared to  $140.00
    12 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Big
1–30 of 55 products
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