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REI Co-op Underwear: Deals

(57 products)
Products (57)
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  • 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
    $20.89 - $31.39
    Save 30% - 53%
    compared to  $44.95
    10 reviews with an average rating of 4.9 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big, Tall
  • Sale Ends Nov 24
    REI Co-opMerino Boxer Briefs - Men's
    $27.89
    Save 30%
    compared to  $39.95
    106 reviews with an average rating of 4.2 out of 5 stars
    Size Type:
    Regular, Big
  • Sale Ends Nov 24
    REI Co-opActive Thong Underwear - Women's
    $4.69 - $10.39
    Save 30% - 68%
    compared to  $14.95
    22 reviews with an average rating of 4.3 out of 5 stars
    Size Type:
    Regular, Plus
  • 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-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
    REI Co-opMerino Bikini Underwear - Women's
    $19.49
    Save 30%
    compared to  $27.95
    54 reviews with an average rating of 4.2 out of 5 stars
    Size Type:
    Regular, Plus
  • Sale Ends Nov 24
    Top Rated
    REI Co-opMidweight Long-Sleeve Base Layer Top - Men's
    $38.39
    Save 30%
    compared to  $54.95
    171 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 Long-Sleeve Crew Base Layer Top - Women's
    $19.49 - $27.89
    Save 30% - 51%
    compared to  $39.95
    28 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Plus
  • 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 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 Bralette
    $31.39
    Save 30%
    compared to  $44.95
    170 reviews with an average rating of 4.6 out of 5 stars
    Bra Support:
    Low Impact
    Support Style:
    Encapsulation
    Fabric:
    48% merino wool/32% TENCEL lyocell/15% nylon/5% LYCRA spandex
  • Sale Ends Nov 24
    REI Co-opMidweight Long-Sleeve Base Layer Top - Women's
    $38.39
    Save 30%
    compared to  $54.95
    279 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Plus
  • Sale Ends Nov 24
    REI Co-opMidweight Base Layer Tights - Women's
    $38.39
    Save 30%
    compared to  $54.95
    104 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Plus, Petite
  • 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 Nov 24
    REI Co-opEveryday Boxers - Men's
    $15.99
    Save 30%
    compared to  $22.95
    128 reviews with an average rating of 4.2 out of 5 stars
    Size Type:
    Regular, Big
  • Sale Ends Nov 24
    REI Co-opMerino Boxers - Men's
    $27.89
    Save 30%
    compared to  $39.95
    69 reviews with an average rating of 4.3 out of 5 stars
    Size Type:
    Regular, Big
  • 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-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
    REI Co-opMerino 185 Base Layer Bottoms - Men's
    $55.89
    Save 30%
    compared to  $79.95
    130 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-opMidweight Base Layer Half-Zip Top - Women's
    $41.89
    Save 30%
    compared to  $59.95
    163 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular, Plus
  • Sale Ends Nov 24
    Top Rated
    REI Co-opMidweight Base Layer Bottoms - Kids'
    $11.69 - $24.39
    Save 30% - 66%
    compared to  $34.95
    8 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
  • 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
    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-opHeavyweight Merino Long-Sleeve Base Layer Crew Top - Women's
    $69.89
    Save 30%
    compared to  $99.95
    28 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Plus
  • 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-opHeavyweight Merino Base Layer Bottoms - Women's
    $69.89
    Save 30%
    compared to  $99.95
    22 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Heavyweight
    Size Type:
    Regular, Plus
  • Sale Ends Nov 24
    REI Co-opMerino 185 Base Layer Bottoms - Women's
    $55.89
    Save 30%
    compared to  $79.95
    105 reviews with an average rating of 4.3 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular
  • 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 Hipster Underwear - Women's
    $20.89
    Save 30%
    compared to  $29.95
    49 reviews with an average rating of 4.0 out of 5 stars
    Size Type:
    Regular, Plus
1–30 of 57 products
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