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Sun-Protective Fabric Men's Underwear

(34 products)
Products (34)
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  • Sale Ends Nov 24
    REI Co-opMidweight Base Layer Bottoms - Men's
    $38.39
    Save 30%
    compared to  $54.95
    82 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big, Tall
  • Sale Ends Nov 24
    Top Rated
    REI Co-opLightweight Long-Sleeve Crew Base Layer Top - Men's
    $19.49 - $27.89
    Save 30% - 51%
    compared to  $39.95
    16 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big, Tall
  • Sale Ends Nov 24
    Top Rated
    REI Co-opMidweight Long-Sleeve Base Layer Top - Men's
    $38.39
    Save 30%
    compared to  $54.95
    170 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big, Tall
  • Sale Ends Nov 24
    Top Rated
    REI Co-opLightweight Base Layer Bottoms - Men's
    $27.89
    Save 30%
    compared to  $39.95
    15 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big, Tall
  • Sale Ends Nov 24
    Top Rated
    REI Co-opHeavyweight Merino Base Layer Bottoms - Men's
    $69.89
    Save 30%
    compared to  $99.95
    9 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big, Tall
  • Sale Ends Nov 24
    Top Rated
    REI Co-opLightweight Crew Base Layer Top - Men's
    $13.89 - $20.89
    Save 30% - 53%
    compared to  $29.95
    21 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
  • Sale Ends Nov 24
    Top Rated
    REI Co-opLightweight Half-Zip Base Layer Top - Men's
    $31.39
    Save 30%
    compared to  $44.95
    10 reviews with an average rating of 4.9 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
  • Sale Ends Nov 24
    REI Co-opMerino 185 Base Layer Bottoms - Men's
    $55.89
    Save 30%
    compared to  $79.95
    132 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
  • Sale Ends Nov 24
    REI Co-opHeavyweight Merino Long-Sleeve Base Layer Crew Top - Men's
    $69.89
    Save 30%
    compared to  $99.95
    25 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big, Tall
  • Sale Ends Nov 24
    Top Rated
    REI Co-opMerino 185 Long-Sleeve Base Layer Top - Men's
    $55.89
    Save 30%
    compared to  $79.95
    189 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
  • Sale Ends Nov 24
    Top Rated
    REI Co-opMidweight Base Layer Half-Zip Top - Men's
    $41.89
    Save 30%
    compared to  $59.95
    156 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big, Tall
  • Sale Ends Nov 24
    REI Co-opHeavyweight Merino Base Layer Half-Zip Top - Men's
    $73.39
    Save 30%
    compared to  $104.95
    15 reviews with an average rating of 3.9 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big, Tall
  • Sale Ends Nov 24
    REI Co-opMerino 185 Base Layer Top - Men's
    $48.89
    Save 30%
    compared to  $69.95
    54 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
  • Sale Ends Nov 24
    Top Rated
    REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Men's
    $62.89
    Save 30%
    compared to  $89.95
    110 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
  • Sale Ends Dec 8
    Top Rated
    IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Men's
    $78.69
    Save 25%
    compared to  $105.00
    167 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
  • Sale Ends Nov 24
    Top Rated
    REI Co-opMerino 185 Long-Sleeve Base Layer Top - Men's Tall Sizes
    $55.89
    Save 30%
    compared to  $79.95
    8 reviews with an average rating of 4.9 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Tall, Big
  • Sale Ends Nov 24
    REI Co-opMerino 185 Base Layer Bottoms - Men's Tall Sizes
    $55.89
    Save 30%
    compared to  $79.95
    13 reviews with an average rating of 3.9 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Tall, Big
  • Sale Ends Dec 8
    Top Rated
    IcebreakerMerino 260 Tech Long-Sleeve Crewe Thermal Top - Men's
    $93.69
    Save 25%
    compared to  $125.00
    63 reviews with an average rating of 4.8 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big
  • Sale Ends Dec 8
    Top Rated
    IcebreakerMerino 200 Oasis Base Layer Leggings with Fly - Men's
    $78.69
    Save 25%
    compared to  $105.00
    63 reviews with an average rating of 4.7 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    Top Rated
    Icebreaker200 Sonebula Leggings - Men's
    $89.73
    Save 25%
    compared to  $120.00
    5 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Big
    REI OUTLET
  • Sale Ends Dec 8
    Top Rated
    Icebreaker260 Merino Tech Thermal Leggings with Fly - Men's
    $93.69
    Save 25%
    compared to  $125.00
    62 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Big
  • Sale Ends Nov 24
    Top Rated
    REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Men's Tall Sizes
    $62.89
    Save 30%
    compared to  $89.95
    13 reviews with an average rating of 4.9 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Tall, Big
    Hot ChillysClima-Wool Base Layer Bottoms - Men's
    $79.73
    Save 33%
    compared to  $120.00
    0 reviews
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    REI OUTLET
    TerramarC-Suite Mammoth Sherpa Fleece Mid-Layer Pants - Men's
    $56.73
    Save 29%
    compared to  $80.00
    0 reviews
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    REI OUTLET
    Hot ChillysClima-Wool Crew Base Layer Top - Men's
    $79.73
    Save 33%
    compared to  $120.00
    0 reviews
    Underwear Weight:
    Midweight
    Size Type:
    Regular
    REI OUTLET
  • Sale Ends Dec 8
    Icebreaker200 Oasis Crewe Base Layer Top - Men's
    $71.19
    Save 25%
    compared to  $95.00
    38 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Big
    Outdoor ResearchAlpine Onset Merino 150 Base Layer Bottoms - Men's
    $99.00
    11 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    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
    KUHLReactiv Lite Grid Base Layer Bottoms - Men's
    $99.00
    4 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    Top Rated
    Outdoor ResearchAlpine Onset Merino 150 Base Layer Hoodie - Men's
    $119.00
    5 reviews with an average rating of 5.0 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
1–30 of 34 products
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