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Base Layer Tops

(256 products)
Products (256)
Sort: Best Match
    New arrival
    Helly HansenLIFA Merino Midweight Balaclava Hoodie - Women's
    $106.73
    Save 28%
    compared to  $150.00
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    0 reviews
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    New arrival
    Helly HansenLIFA Merino Midweight Graphic Crew Base Layer - Women's
    $79.73
    Save 27%
    compared to  $110.00
    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:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    Helly HansenLIFA Merino Midweight 2-In-1 Base Layer Hoodie - Women's
    $86.73
    Save 27%
    compared to  $120.00
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    0 reviews
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    Helly HansenLifa Merino Midweight Crew Base Layer Top - Men's
    $105.00
    0 reviews
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    Helly HansenHH Durawool Crew Long-Sleeve Base Layer - Women's
    $90.00
    0 reviews
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    Helly HansenH1 Pro Lifa Seamless Half-Zip Base Layer Top - Men's
    $96.73
    Save 35%
    compared to  $150.00
    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:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
    Kari TraaRose Light Half-Zip 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:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    Helly HansenLIFA Merino Midweight Half-Zip Base Layer Top - Women's
    $79.73 - $82.73
    Save 24% - 27%
    compared to  $110.00
    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 TraaLune Long-Sleeve Base Layer Top - Women's
    $41.73
    Save 35%
    compared to  $65.00
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    2 reviews with an average rating of 3.0 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    REI OUTLET
    Kari TraaEdith Long-Sleeve Base Layer Top - Women's
    $74.73
    Save 25%
    compared to  $100.00
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    0 reviews
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    Helly HansenLIFA Merino Midweight Balaclava Base Layer Hoodie - Women's
    $150.00
    0 reviews
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    Kari TraaRose Light Base Layer Top - Women's
    $82.73
    Save 24%
    compared to  $110.00
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    0 reviews
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    Kari TraaSmekker Half-Zip Base Layer Top - Women's
    $89.73
    Save 30%
    compared to  $130.00
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    19 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
    New arrival
    Kari TraaVilma Long-Sleeve 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:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    New arrival
    Kari TraaVilma Half-Zip Base Layer Top - Women's
    $74.73
    Save 25%
    compared to  $100.00
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    0 reviews
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    Kari TraaEdith Half-Zip Base Layer Top - Women's
    $82.73
    Save 24%
    compared to  $110.00
    Members use code LABORDAY2025 for an extra 20% off at REI Outlet
    1 reviews with an average rating of 1.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
241–256 of 256 products
Sort: Best Match

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