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Men's Base Layers: Deals

(54 products)
Products (54)
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    Top Rated
    REI Co-opMidweight Long-Sleeve Base Layer Top - Men's
    $37.93 - $54.95
    197 reviews with an average rating of 4.6 out of 5 stars
    REI Co-opHeavyweight Merino Long-Sleeve Base Layer Crew Top - Men's
    $69.93 - $99.95
    41 reviews with an average rating of 4.4 out of 5 stars
    Top Rated
    SmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Men's
    $66.93 - $100.00
    87 reviews with an average rating of 4.6 out of 5 stars
    Top Rated
    REI Co-opHeavyweight Merino Base Layer Bottoms - Men's
    $69.93 - $99.95
    18 reviews with an average rating of 4.8 out of 5 stars
    Top Rated
    REI Co-opMidweight Base Layer Half-Zip Top - Men's
    $41.93 - $59.95
    181 reviews with an average rating of 4.6 out of 5 stars
    Top Rated
    REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Men's
    $62.93 - $89.95
    124 reviews with an average rating of 4.5 out of 5 stars
    Top Rated
    PatagoniaCapilene Midweight Crew Base Layer Top - Men's
    $61.93 - $89.00
    89 reviews with an average rating of 4.5 out of 5 stars
    REI Co-opHeavyweight Merino Base Layer Half-Zip Top - Men's
    $72.93 - $104.95
    25 reviews with an average rating of 4.2 out of 5 stars
    tasc PerformanceElevation Merino T-Shirt - Men's
    $34.73 - $54.73
    Save 30% - 56%
    compared to  $79.00
    52 reviews with an average rating of 4.4 out of 5 stars
    REI OUTLET
    Top Rated
    IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Men's
    $69.93 - $120.00
    220 reviews with an average rating of 4.7 out of 5 stars
    Top Rated
    REI Co-opLightweight Crew Base Layer Top - Men's
    $9.83 - $34.95
    26 reviews with an average rating of 4.6 out of 5 stars
    tasc PerformanceElevation Merino Base Layer Bottoms - Men's
    $34.73 - $54.73
    Save 30% - 56%
    compared to  $79.00
    43 reviews with an average rating of 4.0 out of 5 stars
    REI OUTLET
    Top Rated
    IcebreakerMerino 260 Tech Long-Sleeve Crewe Thermal Top - Men's
    $89.93 - $125.00
    79 reviews with an average rating of 4.7 out of 5 stars
    PatagoniaCapilene Midweight Zip-Neck Base Layer Top - Men's
    $68.93 - $99.00
    75 reviews with an average rating of 4.4 out of 5 stars
    SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Men's
    $92.73
    Save 28%
    compared to  $130.00
    136 reviews with an average rating of 4.4 out of 5 stars
    REI OUTLET
    Top Rated
    Icebreaker200 Oasis Long-Sleeve Half-Zip Base Layer Top - Men's
    $79.93 - $130.00
    34 reviews with an average rating of 4.7 out of 5 stars
    Top Rated
    IcebreakerMerino 125 ZoneKnit Long-Sleeve Half-Zip Base Layer Top - Men's
    $99.73
    Save 26%
    compared to  $135.00
    16 reviews with an average rating of 4.8 out of 5 stars
    REI OUTLET
    PatagoniaCapilene Thermal Weight Zip-Neck Base Layer Top - Men's
    $69.73
    Save 36%
    compared to  $109.00
    25 reviews with an average rating of 3.9 out of 5 stars
    REI OUTLET
    Top Rated
    Arc'teryxRho Insulated 3/4 Base Layer Bottoms - Men's
    $159.73
    Save 20%
    compared to  $200.00
    13 reviews with an average rating of 4.6 out of 5 stars
    REI OUTLET
    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
    REI OUTLET
  • Limited-time offer! The REI Co-op Mastercard.

    Get $130 in value

    $30 in card rewards are yours when approved for the REI Co-op Mastercard by Mar 9. Plus, you can earn a $100 REI gift card after your first purchase. Terms apply.

    New arrival
    Mountain HardwearUp First Tech Fleece Base Layer Bottoms - Men's
    $74.73
    Save 25%
    compared to  $100.00
    3 reviews with an average rating of 4.3 out of 5 stars
    REI OUTLET
    New arrival
    PatagoniaCapilene Thermal Weight Crewneck Base Layer Top - Men's
    $73.73
    Save 25%
    compared to  $99.00
    0 reviews
    REI OUTLET
    PatagoniaCapilene Thermal Weight Zip-Neck Top - Men's
    $75.93 - $115.00
    25 reviews with an average rating of 3.9 out of 5 stars
    Top Rated
    IcebreakerMerino 200 ZoneKnit Long-Sleeve Half-Zip Base Layer Top - Men's
    $119.73
    Save 25%
    compared to  $160.00
    7 reviews with an average rating of 4.7 out of 5 stars
    REI OUTLET
    SmartwoolIntraknit Active Base Layer Bottoms - Men's
    $81.73
    Save 25%
    compared to  $110.00
    4 reviews with an average rating of 4.5 out of 5 stars
    REI OUTLET
    PatagoniaCapilene Midweight Zip-Neck Long Underwear Top - Men's
    $63.73
    Save 35%
    compared to  $99.00
    74 reviews with an average rating of 4.4 out of 5 stars
    REI OUTLET
    Arms of Andes300 Alpaca Wool Long-Sleeve Crew Base Layer Top - Men's
    $64.83 - $69.83
    Save 50%
    compared to  $130.00 - $140.00
    8 reviews with an average rating of 3.5 out of 5 stars
    Top Rated
    Icebreaker200 Sonebula Leggings - Men's
    $89.73
    Save 25%
    compared to  $120.00
    5 reviews with an average rating of 5.0 out of 5 stars
    REI OUTLET
    Free CountryCloud Knit Base Layer Bottoms - Men's
    $26.73
    Save 33%
    compared to  $40.00
    3 reviews with an average rating of 5.0 out of 5 stars
    REI OUTLET
    New arrival
    PatagoniaCapilene Midweight Crew Base Layer Top - Kids'
    $28.73
    Save 26%
    compared to  $39.00
    0 reviews
    REI OUTLET
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