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Polyester Base Layers

(102 products)
Products (102)
Remove fabric-type filter:Polyester / Polyester Blend
Sort: Best Match
    PatagoniaCapilene Midweight Zip-Neck Base Layer Top - Men's
    $99.00
    66 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    PatagoniaCapilene Thermal Weight Long Underwear Crew Top - Men's
    $99.00
    10 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    Top Rated
    Arc'teryxRho Zip-Neck Base Layer Top - Women's
    $120.00
    39 reviews with an average rating of 4.8 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    Arc'teryxRho LT Base Layer Bottoms - Men's
    $100.00
    54 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    Free CountryForce Grid Fleece Base Layer Top - Women's
    $34.73
    Save 36%
    compared to  $55.00
    Save up to 30% extra on your REI Outlet purchase, thru 12/16.
    2 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    REI OUTLET
    PatagoniaCapilene Thermal Weight Zip-Neck Top - Men's
    $109.00
    23 reviews with an average rating of 4.0 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big
    New arrival
    Terramar2.0 Thermolator Crew Base Layer Top - Kids'
    $24.73
    Save 29%
    compared to  $35.00
    Save up to 30% extra on your REI Outlet purchase, thru 12/16.
    0 reviews
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
    Arc'teryxRho Base Layer Bottoms - Women's
    $79.73
    Save 20%
    compared to  $100.00
    Save up to 30% extra on your REI Outlet purchase, thru 12/16.
    13 reviews with an average rating of 4.1 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    Free CountryForce Grid Fleece Base Layer Bottoms - Men's
    $29.73
    Save 33%
    compared to  $45.00
    Save up to 30% extra on your REI Outlet purchase, thru 12/16.
    8 reviews with an average rating of 3.6 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    REI OUTLET
    Top Rated
    REI Co-opLightweight Half-Zip Base Layer Top - Women's
    $44.95
    12 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    PatagoniaCapilene Thermal Weight Zip-Neck Long Underwear Top - Women's
    $109.00
    14 reviews with an average rating of 4.1 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    The North FaceDotKnit Thermal Base Layer Set - Toddlers'
    $70.00
    0 reviews
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    Terramar2.0 Cloud Nine Half-Zip Base Layer Top - Women's
    $34.73
    Save 30%
    compared to  $50.00
    Save up to 30% extra on your REI Outlet purchase, thru 12/16.
    1 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    Free CountryMicrotech Heat Cocarber Base Layer Top - Women's
    $39.73
    Save 33%
    compared to  $60.00
    Save up to 30% extra on your REI Outlet purchase, thru 12/16.
    2 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    REI OUTLET
    Top Rated
    Arc'teryxRho Hoody Base Layer Top - Women's
    $120.00 - $140.00
    38 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    Top Rated
    REI Co-opLightweight Crew Base Layer Top - Men's
    $19.93 - $29.95
    23 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    Free CountryForce Grid Fleece Base Layer Bottoms - Women's
    $34.73
    Save 36%
    compared to  $55.00
    Save up to 30% extra on your REI Outlet purchase, thru 12/16.
    6 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
    Free CountryCloud Knit Crewneck Base Layer Top - Men's
    $26.73
    Save 33%
    compared to  $40.00
    Save up to 30% extra on your REI Outlet purchase, thru 12/16.
    3 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    REI OUTLET
    Arc'teryxRho SV Base Layer Bottoms - Men's
    $120.00
    0 reviews
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big
    Free CountryMicrotech Heat Cocarber Base Layer Bottoms - Women's
    $39.73
    Save 33%
    compared to  $60.00
    Save up to 30% extra on your REI Outlet purchase, thru 12/16.
    3 reviews with an average rating of 3.7 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
    New arrival
    Terramar2.0 Thermolator Base Layer Pants - Men's
    $32.73
    Save 27%
    compared to  $45.00
    Save up to 30% extra on your REI Outlet purchase, thru 12/16.
    0 reviews
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    REI OUTLET
    KUHLReactiv Lite Grid Quarter-Zip Base Layer Top - Men's
    $119.00
    2 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    Kari TraaFryd Base Layer Pants - Women's
    $40.73
    Save 25% - 32%
    compared to  $55.00 - $60.00
    Save up to 30% extra on your REI Outlet purchase, thru 12/16.
    18 reviews with an average rating of 3.4 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    REI OUTLET
    PatagoniaCapilene Thermal Weight Long-Underwear Bottoms - Men's
    $99.00
    15 reviews with an average rating of 4.1 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    KUHLReactiv Lite Grid Long-Sleeve Crew Base Layer Top - Men's
    $109.00
    8 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    PatagoniaCapilene Midweight Zip-Neck Base Layer Top - Women's
    $99.00
    27 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    Kari TraaFryd Long-Sleeve Base Layer Top - Women's
    $40.73
    Save 32%
    compared to  $60.00
    Save up to 30% extra on your REI Outlet purchase, thru 12/16.
    27 reviews with an average rating of 4.1 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    REI OUTLET
    Free CountryCloud Knit Base Layer Bottoms - Men's
    $26.73
    Save 33%
    compared to  $40.00
    Save up to 30% extra on your REI Outlet purchase, thru 12/16.
    0 reviews
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    REI OUTLET
    PatagoniaCapilene Thermal Weight Long Underwear Crew Top - Women's
    $99.00
    9 reviews with an average rating of 3.2 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    Terramar2.0 Cloud Nine Midweight Base Layer Capri Pants - Women's
    $28.73
    Save 28%
    compared to  $40.00
    Save up to 30% extra on your REI Outlet purchase, thru 12/16.
    1 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
31–60 of 102 products
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