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Men's Base Layer Tops: Deals

(35 products)
Products (35)
Sort: Best Match
    REI Co-opLightweight Long-Sleeve Crew Base Layer Top - Men's
    $29.93 - $44.95
    Top Rated
    53 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    tasc PerformanceElevation Merino T-Shirt - Men's
    $54.73
    Save 30%
    compared to  $79.00
    REI Outlet
    57 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    SmartwoolClassic Thermal Merino Crew Base Layer Top - Men's
    $86.97
    Save 30%
    compared to  $125.00
    REI Outlet
    Top Rated
    335 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Big
    SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Men's
    $92.73 - $96.73
    Save 25% - 28%
    compared to  $130.00
    REI Outlet
    251 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Men's
    $59.83 - $120.00
    Top Rated
    104 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    REI Co-opLightweight Half-Zip Base Layer Top - Men's
    $34.93 - $49.95
    25 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    SmartwoolIntraknit Thermal Max Merino Quarter-Zip Base Layer Top - Men's
    $107.87
    Save 30%
    compared to  $155.00
    REI Outlet
    0 reviews
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big
    Free CountryCloud Knit Crewneck Base Layer Top - Men's
    $26.73
    Save 33%
    compared to  $40.00
    REI Outlet
    13 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    SmartwoolClassic Thermal Merino Colorblock Crew Base Layer Top - Men's
    $90.87
    Save 30%
    compared to  $130.00
    REI Outlet
    2 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    Free CountryForce Grid Fleece Base Layer Top - Men's
    $26.73
    Save 33%
    compared to  $40.00
    REI Outlet
    Top Rated
    19 reviews with an average rating of 4.7 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
    REI Outlet
    Top Rated
    5 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    SmartwoolClassic Thermal Merino Base Layer Quarter-Zip - Men's
    $89.73
    Save 25%
    compared to  $120.00
    REI Outlet
    Top Rated
    71 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    REI Co-opLightweight Crew Base Layer Top - Men's
    $24.93 - $34.95
    Top Rated
    44 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big, Tall
    SmartwoolIntraknit Thermal Merino Base Layer Colorblock Crew - Men's
    $96.73
    Save 25%
    compared to  $130.00
    REI Outlet
    18 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Big, Regular
    IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Men's
    $84.97
    Save 29%
    compared to  $120.00
    REI Outlet
    87 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    SwixRaceX Merino Half-Zip Base Layer Top - Men's
    $46.73
    Save 33%
    compared to  $70.00
    REI Outlet
    New arrival
    0 reviews
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
  • A yellow Member Bonus Card and two holiday-themed gift cards on a light colored background.

    Give the gift of the outdoors

    Members, get a $25 bonus e-card when you buy a $130+ gift card. Terms apply.

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    SmartwoolIntraknit Thermal Merino Base Layer Hoodie - Men's
    $134.73
    Save 25%
    compared to  $180.00
    REI Outlet
    2 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    Helly HansenHH Durawool Long-Sleeve Henley Base Layer Top - Men's
    $69.97
    Save 30%
    compared to  $100.00
    REI Outlet
    1 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    Black DiamondSolution 150 Merino Baselayer Crew Top - Men's
    $79.73
    Save 40%
    compared to  $135.00
    REI Outlet
    Top Rated
    40 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    Helly HansenHH Lifa Active Crew Base Layer Top - Men's
    $48.73
    Save 25%
    compared to  $65.00
    REI Outlet
    Top Rated
    8 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    IcebreakerMerino 200 Sonebula Long-Sleeve Crewe Base Layer Top - Men's
    $47.87
    Save 60%
    compared to  $120.00
    REI Outlet
    Top Rated
    14 reviews with an average rating of 4.8 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    Black DiamondCoefficient LT One Piece Base Layer - Men's
    $128.77
    Save 41%
    compared to  $219.00
    REI Outlet
    10 reviews with an average rating of 3.3 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    RaphaThermal Base Layer Top - Men's
    $79.97
    Save 27%
    compared to  $110.00
    REI Outlet
    New arrival
    0 reviews
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    Helly HansenHH Durawool T-Shirt - Men's
    $55.97
    Save 34%
    compared to  $85.00
    REI Outlet
    2 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    Helly HansenLIFA Merino Midweight Balaclava Base Layer Hoodie - Men's
    $109.73
    Save 29%
    compared to  $155.00
    REI Outlet
    1 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    Helly HansenLIFA Active Stripe Crew Base Layer Top - Men's
    $48.73
    Save 25%
    compared to  $65.00
    REI Outlet
    4 reviews with an average rating of 3.5 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
  • Text reads ‘happening now!’ over an image of the R E I Co-op Mastercard.

    $130 in value

    Get $30 in card rewards when you’re approved by Nov 23. Plus, earn a $100 REI gift card after your first qualifying purchase.

    Terms apply

    Helly HansenLIFA Merino Midweight Crew Base Layer Top - Men's
    $78.73
    Save 25%
    compared to  $105.00
    REI Outlet
    2 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    SwixRaceX Classic Half-Zip Base Layer Top - Men's
    $44.73
    Save 36%
    compared to  $70.00
    REI Outlet
    New arrival
    0 reviews
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    REI Co-opMidweight Long-Sleeve Base Layer Top - Men's
    $19.83
    Save 63%
    compared to  $54.95
    Top Rated
    225 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    Helly HansenHH Durawool Crew Long-Sleeve Base Layer Top - Men's
    $69.73
    Save 26%
    compared to  $95.00
    REI Outlet
    0 reviews
    Underwear Weight:
    Lightweight
    Size Type:
    Big
Sort: Best Match

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