Skip to search results
loaded 102 results

Polyester Base Layers

(102 products)
Products (102)
Remove fabric-type filter:Polyester / Polyester Blend
Sort: Best Match
    PatagoniaCapilene Thermal Weight Long Underwear Bottoms - Women's
    $99.00
    15 reviews with an average rating of 3.7 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    Top Rated
    REI Co-opLightweight Crew Base Layer Top - Women's
    $29.95
    21 reviews with an average rating of 4.8 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
    Arc'teryxRho SV Zip-Neck Base Layer Top - Men's
    $140.00
    5 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big
    Hootie HooTorrent Layering Fleece Base Layer Set - Toddler's
    $75.00
    2 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    TerramarC-Suite Mammoth Sherpa Fleece Mid-Layer Joggers - Women's
    $51.73
    Save 35%
    compared to  $80.00
    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
    TerramarC-Suite Fusion Thermal Pants - Women's
    $42.73
    Save 34%
    compared to  $65.00
    Save up to 30% extra on your REI Outlet purchase, thru 12/16.
    0 reviews
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    Top Rated
    Free CountryForce Grid Fleece Base Layer Top - 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 4.8 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Big, Regular
    REI OUTLET
    The North FaceDotKnit Thermal Base Layer Set - Kids'
    $80.00
    7 reviews with an average rating of 3.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    Kari TraaFryd Base Layer Top - Women's
    $65.00
    27 reviews with an average rating of 4.1 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    Hot ChillysPeach Skins T-Neck Base Layer Top - Kids'
    $32.73
    Save 34%
    compared to  $50.00
    Save up to 30% extra on your REI Outlet purchase, thru 12/16.
    0 reviews
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
    Top Rated
    KUHLReactiv Lite Grid Base Layer Bottoms - Men's
    $99.00
    5 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    Deux par DeuxThermal Underwear Base Layer Set - Toddlers'
    $72.00
    0 reviews
    Underwear Weight:
    Midweight
    Size Type:
    Regular
  • Sale Ends Dec 18
    Top Rated
    ColumbiaMidweight Stretch Base Layer Tights - Women's
    $41.19
    Save 25%
    compared to  $55.00
    196 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    SaxxRoast Master Midweight Base Layer Bottoms - Men's
    $47.73
    Save 36%
    compared to  $75.00
    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, Big
    REI OUTLET
    Kari TraaFierce Base Layer Pants - Women's
    $46.73
    Save 29%
    compared to  $66.00
    Save up to 30% extra on your REI Outlet purchase, thru 12/16.
    0 reviews
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
    SaxxRoast Master Midweight Long-Sleeve Crew Base Layer Top - Men's
    $47.73
    Save 36%
    compared to  $75.00
    Save up to 30% extra on your REI Outlet purchase, thru 12/16.
    0 reviews
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    REI OUTLET
    Kari TraaFierce Long-Sleeve Base Layer Top - Women's
    $46.73
    Save 29%
    compared to  $66.00
    Save up to 30% extra on your REI Outlet purchase, thru 12/16.
    1 reviews with an average rating of 3.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
    Free CountryMicrotech Heat Cocarber 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:
    Lightweight
    Size Type:
    Regular
    REI OUTLET
    KUHLReactiv Lite Grid Long-Sleeve Crew Base Layer Top - Women's
    $109.00
    2 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    PatagoniaCapilene Thermal Weight Boot-Length Long Underwear Bottoms - Women's
    $85.00
    6 reviews with an average rating of 3.5 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    KUHLReactiv Lite Grid Quarter-Zip Base Layer Top - Women's
    $119.00
    1 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
    Kari TraaFryd Base Layer Pants - Women's
    $65.00
    18 reviews with an average rating of 3.4 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    Deux par DeuxThermal Underwear Base Layer Set - Kids'
    $72.00
    0 reviews
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    SpraywayEffra Hoody Base Layer Top - Women's
    $49.73
    Save 28%
    compared to  $69.95
    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:
    Heavyweight
    Size Type:
    Regular
    REI OUTLET
    Top Rated
    The North FaceSummit Series Pro 120 Base Layer Tights - Women's
    $100.00
    15 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Ultralightweight
    Size Type:
    Regular, Plus
    SpraywayEffra Leggings Base Layer Bottoms - Women's
    $36.73
    Save 26%
    compared to  $49.95
    Save up to 30% extra on your REI Outlet purchase, thru 12/16.
    1 reviews with an average rating of 3.0 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    REI OUTLET
    Top Rated
    The North FaceSummit Series Pro 120 Crew Base Layer Top - Men's
    $90.00
    22 reviews with an average rating of 4.8 out of 5 stars
    Underwear Weight:
    Ultralightweight
    Size Type:
    Regular, Big
    Free CountryCloud Knit Base Layer Bottoms - Women's
    $31.73
    Save 29%
    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
    REI OUTLET
    Arc'teryxRho LT Base Layer Bottoms - Men's
    $79.73
    Save 20%
    compared to  $100.00
    Save up to 30% extra on your REI Outlet purchase, thru 12/16.
    11 reviews with an average rating of 3.9 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Big
    REI OUTLET
    TerramarC-Suite Mammoth Sherpa Fleece Mid-Layer Pants - Men's
    $56.73
    Save 29%
    compared to  $80.00
    Save up to 30% extra on your REI Outlet purchase, thru 12/16.
    2 reviews with an average rating of 3.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    REI OUTLET
61–90 of 102 products
Sort: Best Match

Related Expert Advice articles