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Heavyweight Base Layers

(43 products)
Products (43)
Remove underwear-weight filter:Heavyweight
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    REI Co-opHeavyweight Merino Base Layer Half-Zip Top - Men's
    $49.83 - $104.95
    31 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big, Tall
    REI Co-opHeavyweight Merino Long-Sleeve Base Layer Crew Top - Men's
    $49.83 - $99.95
    48 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big
    Top Rated
    REI Co-opHeavyweight Merino Base Layer Half-Zip Top - Women's
    $51.83 - $104.95
    35 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Plus
    REI Co-opHeavyweight Merino Long-Sleeve Base Layer Crew Top - Women's
    $49.83 - $99.95
    45 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Plus
    REI Co-opHeavyweight Merino Base Layer Bottoms - Women's
    $49.83 - $99.95
    34 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Plus
    Top Rated
    REI Co-opHeavyweight Merino Base Layer Bottoms - Men's
    $99.95
    21 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big, Tall
    Arc'teryxKyanite Base Layer Crew Top - Women's
    $95.73
    Save 20%
    compared to  $120.00
    Save up to 30% extra on your REI Outlet purchase
    3 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    REI OUTLET
    PatagoniaCapilene Thermal Weight Zip-Neck Base Layer Top - Men's
    $69.73
    Save 36%
    compared to  $109.00
    Save up to 30% extra on your REI Outlet purchase
    26 reviews with an average rating of 3.9 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    REI OUTLET
    Arc'teryxRho SV Zip-Neck Base Layer Top - Men's
    $112.93 - $140.00
    14 reviews with an average rating of 3.6 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    Top Rated
    Arc'teryxRho Hybrid Insulated Base Layer Bottoms - Women's
    $143.73
    Save 20%
    compared to  $180.00
    Save up to 30% extra on your REI Outlet purchase
    16 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    REI OUTLET
    Top Rated
    Arc'teryxKyanite Base Layer Bottoms - Women's
    $96.93
    Save 19%
    compared to  $120.00
    29 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Plus
    SENIQWool Sculpt Merino Base Layer Leggings - Women's
    $63.83 - $128.00
    0 reviews
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    PatagoniaCapilene Thermal Weight Long Underwear Crew Top - Women's
    $99.00
    10 reviews with an average rating of 3.1 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    Top Rated
    Arc'teryxRho Hybrid Insulated Base Layer Bottoms - Women's
    $135.93
    Save 24%
    compared to  $180.00
    16 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    Icebreaker260 Tech Base Layer Leggings - Women's
    $61.83 - $125.00
    34 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Plus
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    Kari TraaSara Half-Zip Base Layer Top - Women's
    $49.83
    Save 54%
    compared to  $110.00
    2 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    SENIQWool Sculpt Merino Mock-Neck Long-Sleeve Base Layer Shirt - Women's
    $99.93 - $128.00
    2 reviews with an average rating of 3.0 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    Top Rated
    Icebreaker260 Merino Tech Thermal Leggings with Fly - Men's
    $140.00
    73 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big
    PatagoniaCapilene Thermal Weight Long Underwear Bottoms - Women's
    $99.00
    16 reviews with an average rating of 3.8 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    Top Rated
    IcebreakerMerino 260 Tech Long-Sleeve Crewe Thermal Top - Men's
    $125.00
    80 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big
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    Helly HansenGraphic Lifa Merino Base Layer Set - Kids'
    $93.73
    Save 25%
    compared to  $125.00
    Save up to 30% extra on your REI Outlet purchase
    1 reviews with an average rating of 1.0 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    REI OUTLET
    PatagoniaCapilene Thermal Weight Long-Underwear Bottoms - Men's
    $99.00
    16 reviews with an average rating of 4.1 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big
    PatagoniaCapilene Thermal Weight Crewneck Base Layer Top - Men's
    $73.73
    Save 25%
    compared to  $99.00
    Save up to 30% extra on your REI Outlet purchase
    12 reviews with an average rating of 4.1 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    REI OUTLET
    PatagoniaCapilene Thermal Weight Zip-Neck Base Layer Top - Women's
    $69.73
    Save 36%
    compared to  $109.00
    Save up to 30% extra on your REI Outlet purchase
    17 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    REI OUTLET
    Top Rated
    Arc'teryxRho Insulated 3/4 Base Layer Bottoms - Men's
    $159.73
    Save 20%
    compared to  $200.00
    Save up to 30% extra on your REI Outlet purchase
    13 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Big, Regular
    REI OUTLET
    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
    1 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    REI OUTLET
    SmartwoolIntraknit Thermal Max Merino Quarter-Zip Base Layer Top - Women's
    $115.73
    Save 25%
    compared to  $155.00
    Save up to 30% extra on your REI Outlet purchase
    0 reviews
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    REI OUTLET
    Top Rated
    Icebreaker260 Tech Long-Sleeve Crewe Base Layer Top - Women's
    $125.00 - $140.00
    49 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Plus
    PatagoniaCapilene Thermal Weight Long Underwear Crew Top - Men's
    $99.00
    12 reviews with an average rating of 4.1 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big
    SpraywayEffra Leggings Base Layer Bottoms - Women's
    $29.73
    Save 40%
    compared to  $49.95
    Save up to 30% extra on your REI Outlet purchase
    1 reviews with an average rating of 3.0 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular
    REI OUTLET
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