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Base Layer Tops: Deals

(143 products)
Products (143)
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    Icebreaker125 ZoneKnit Long-Sleeve Crewe Base Layer Thermal Top - Women's
    $93.73
    Save 25%
    compared to  $125.00
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    4 reviews with an average rating of 4.8 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
    Top Rated
    Helly HansenLIFA Merino Midweight Half-Zip Base Layer Top - Men's
    $79.73
    Save 27%
    compared to  $110.00
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    5 reviews with an average rating of 4.8 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    REI OUTLET
    Ortovox230 Competition Zip-Neck Base Layer Top - Men's
    $59.83
    Save 50%
    compared to  $120.00
    3 reviews with an average rating of 3.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    Kari TraaAlma Half-Zip Base Layer Top - Women's
    $59.73
    Save 25%
    compared to  $80.00
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    0 reviews
    Underwear Weight:
    Ultralightweight
    Size Type:
    Regular
    REI OUTLET
    New arrival
    Hot ChillysPeach Skins Crew Base Layer Top- Kids'
    $29.73
    Save 33%
    compared to  $45.00
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    0 reviews
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
  • Sale Ends Today
    ArtilectDarkhorse 185 Zoned Crew Base Layer Top - Women's
    $79.99
    Save 50%
    compared to  $160.00
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    1 reviews with an average rating of 2.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    IcebreakerMerino 260 Vertex Long-Sleeve Half-Zip Herenga Base Layer Top - Women's
    $59.83
    Save 60%
    compared to  $150.00
    10 reviews with an average rating of 4.0 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
  • Sale Ends Today
    ArtilectDarkhorse 185 Zoned Quarter-Zip Base Layer Top - Women's
    $84.99
    Save 50%
    compared to  $170.00
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    1 reviews with an average rating of 3.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    Kari TraaLucie Half-Zip Base Layer Top - Women's
    $67.73
    Save 24%
    compared to  $90.00
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    0 reviews
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
    SmartwoolIntraknit Thermal Max Merino Base Layer Pattern Hoodie - Women's
    $114.73
    Save 30%
    compared to  $165.00
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    0 reviews
    Size Type:
    Regular
    REI OUTLET
    IcebreakerMerino 260 Tech Long-Sleeve Half-Zip Thermal Base Layer Top - Men's
    $99.73
    Save 26%
    compared to  $135.00
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    37 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big
    REI OUTLET
    SmartwoolIntraknit Active Base Layer Crew Shirt - Men's
    $74.73
    Save 32%
    compared to  $110.00
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    1 reviews with an average rating of 4.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Big, Regular
    REI OUTLET
    SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Men's
    $92.73
    Save 28%
    compared to  $130.00
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    9 reviews with an average rating of 4.1 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    REI OUTLET
    IcebreakerMerino 260 Tech Long-Sleeve Half-Zip Thermal Base Layer Top - Kids'
    $52.73
    Save 29%
    compared to  $75.00
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    4 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    Top Rated
    IcebreakerMerino 200 Sonebula Long-Sleeve Crewe Base Layer Top - Men's
    $89.73
    Save 25%
    compared to  $120.00
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    6 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    REI OUTLET
    Free CountryMicrotech Heat Cocaber Base Layer Top - Women's
    $34.73
    Save 30%
    compared to  $50.00
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    1 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
    CraftCORE Dry Active Comfort Base Layer Top - Men's
    $39.73
    Save 38%
    compared to  $64.95
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    0 reviews
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    REI OUTLET
  • Sale Ends Today
    Top Rated
    CotopaxiLiso Base Layer Top - Men's
    $32.49
    Save 50%
    compared to  $65.00
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    37 reviews with an average rating of 4.9 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Big
    REI OUTLET
    SmartwoolClassic Thermal Merino Base Layer Hoodie - Kids'
    $51.73
    Save 31%
    compared to  $75.00
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    3 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    IcebreakerMerino 260 Vertex Long-Sleeve Crewe Thermal Base Layer Top - Women's
    $99.73
    Save 28%
    compared to  $140.00
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    5 reviews with an average rating of 4.0 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    REI OUTLET
    Top Rated
    IcebreakerMerino 125 ZoneKnit Long-Sleeve Half-Zip Base Layer Top - Men's
    $99.73
    Save 26%
    compared to  $135.00
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    11 reviews with an average rating of 4.8 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    REI OUTLET
    SpraywayEffra Jacket Base Layer Top - Women's
    $42.73
    Save 34%
    compared to  $64.95
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    1 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    REI OUTLET
    Free CountryForce Grid Fleece Base Layer Top - Women's
    $34.73
    Save 36%
    compared to  $55.00
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    1 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
    Icebreaker125 ZoneKnit Crewe Base Layer Shirt - Men's
    $84.73
    Save 26%
    compared to  $115.00
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    6 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    REI OUTLET
    IcebreakerMerino 200 ZoneKnit Long-Sleeve Half-Zip Thermal Base Layer Top - Women's
    $103.73
    Save 35%
    compared to  $160.00
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    2 reviews with an average rating of 3.5 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    Top Rated
    IcebreakerMerino 200 Oasis Long-Sleeve Base Layer Crew Top - Kids'
    $41.93
    Save 30%
    compared to  $60.00
    8 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    Top Rated
    Free CountryForce Grid Fleece Crew Base Layer Top - Men's
    $26.73
    Save 40%
    compared to  $45.00
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    5 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Big
    REI OUTLET
    Kari TraaRose Base Layer Hoodie - Women's
    $97.73
    Save 24%
    compared to  $130.00
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    1 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    REI OUTLET
    SmartwoolIntraknit Thermal Merino Base Layer Colorblock Crew - Men's
    $96.73
    Save 25%
    compared to  $130.00
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    11 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    REI OUTLET
    Icebreaker200 Oasis Sonebula Long-Sleeve Crewe Base Layer Top - Women's
    $89.73
    Save 25%
    compared to  $120.00
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    1 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
61–90 of 143 products
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