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Midweight Base Layers

(193 products)
Products (193)
Remove underwear-weight filter:Midweight
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    Kari TraaFryd Base Layer Pants - Women's
    $19.83 - $65.00
    17 reviews with an average rating of 3.4 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
  • Sale Ends Dec 8
    IcebreakerMerino 260 Tech Long-Sleeve Half-Zip Base Layer Top - Men's
    $101.19
    Save 25%
    compared to  $135.00
    39 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Men's
    $92.73
    Save 28%
    compared to  $130.00
    Members use code CYBER2025 to save an extra 25% on this item, thru 12/1
    9 reviews with an average rating of 4.1 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    REI OUTLET
    Arc'teryxRho Boot Cut Base Layer Bottoms - Women's
    $72.73
    Save 19%
    compared to  $90.00
    1 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    Top Rated
    PatagoniaCapilene Midweight Crew Base Layer Top - Women's
    $89.00
    49 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Plus
    Top Rated
    REI Co-opMerino Midweight Base Layer Bottoms - Kids'
    $49.95
    16 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    Kari TraaEdith Base Layer Pants - Women's
    $74.73
    Save 25%
    compared to  $100.00
    Members use code CYBER2025 to save an extra 25% on this item, thru 12/1
    3 reviews with an average rating of 3.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    SmartwoolClassic Thermal Merino Crew Base Layer Top - Kids'
    $65.00
    5 reviews with an average rating of 3.6 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    Top Rated
    REI Co-opMerino Midweight Base Layer Crew Top - Kids'
    $49.95
    28 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
  • Sale Ends Dec 2
    Top Rated
    ColumbiaMidweight Stretch Long-Sleeve Base Layer Top - Women's
    $41.29
    Save 24%
    compared to  $55.00
    216 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Plus
    Top Rated
    Kari TraaRose Half-Zip Base Layer Top - Women's
    $140.00
    49 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Plus
    SmartwoolClassic Thermal Merino Base Layer Bottoms - Kids'
    $65.00
    0 reviews
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    Arc'teryxRho Merino Wool Zip-Neck Base Layer Top - Men's
    $140.00
    12 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    Terramar3.0 Thermawool Crew Base Layer Top - Women's
    $49.73 - $52.73
    Save 24% - 28%
    compared to  $70.00
    Members use code CYBER2025 to save an extra 25% on this item, thru 12/1
    1 reviews with an average rating of 3.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
  • Sale Ends Dec 8
    Top Rated
    Icebreaker260 Tech High-Rise Base Layer Leggings - Women's
    $93.69
    Save 25%
    compared to  $125.00
    19 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    Top Rated
    PatagoniaCapilene Midweight Zip-Neck Base Layer Top - Men's
    $99.00
    64 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
  • Sale Ends Dec 1
    Top Rated
    SmartwoolIntraknit Thermal Merino Base Layer Quarter-Zip Top - Men's
    $104.99
    Save 25%
    compared to  $140.00
    11 reviews with an average rating of 4.9 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    SaxxRoast Master Midweight Base Layer Bottoms - Men's
    $47.73
    Save 36%
    compared to  $75.00
    Members use code CYBER2025 to save an extra 25% on this item, thru 12/1
    1 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    REI OUTLET
    Top Rated
    REI Co-opMidweight Base Layer Crew Top - Toddlers'
    $24.95
    15 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    Top Rated
    REI Co-opMidweight Base Layer Bottoms - Toddlers'
    $24.95
    8 reviews with an average rating of 4.9 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    SmartwoolThermal Merino Rib Turtleneck Base Layer Top - Women's
    $130.00
    4 reviews with an average rating of 3.5 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    Top Rated
    SmartwoolClassic Thermal Merino Base Layer Bottoms - Kids'
    $65.00
    71 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    Top Rated
    SmartwoolClassic Thermal Merino Base Layer Bottoms - Kids'
    $46.73
    Save 28%
    compared to  $65.00
    Members use code CYBER2025 to save an extra 25% on this item, thru 12/1
    52 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    New arrival
    Terramar3.0 Altitude Turtleneck Base Layer Top - Women's
    $19.73
    Save 34%
    compared to  $30.00
    Members use code CYBER2025 to save an extra 25% on this item, thru 12/1
    0 reviews
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    IcebreakerMerino 200 Oasis Thermal Base Layer Leggings - Women's
    $78.73
    Save 25%
    compared to  $105.00
    Members use code CYBER2025 to save an extra 25% on this item, thru 12/1
    79 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Plus
    REI OUTLET
    Kari TraaRose Light Base Layer Top - Women's
    $81.73
    Save 25%
    compared to  $110.00
    Members use code CYBER2025 to save an extra 25% on this item, thru 12/1
    1 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
  • Sale Ends Dec 1
    SmartwoolIntraknit Thermal Merino Colorblock Quarter-Zip Base Layer Top - Women's
    $104.99
    Save 25%
    compared to  $140.00
    3 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    SaxxRoast Master Midweight Long-Sleeve Crew Base Layer Top - Men's
    $47.73
    Save 36%
    compared to  $75.00
    Members use code CYBER2025 to save an extra 25% on this item, thru 12/1
    0 reviews
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    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 CYBER2025 to save an extra 25% on this item, thru 12/1
    7 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
    CraftCORE Dry Active Comfort Base Layer Top - Women's
    $39.73
    Save 38%
    compared to  $64.95
    Members use code CYBER2025 to save an extra 25% on this item, thru 12/1
    4 reviews with an average rating of 4.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
31–60 of 193 products
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