Skip to search results
loaded 7 results

REI Co-op Men's Underwear: Deals

(7 products)
Products (7)
Remove brand filter:REI Co-opRemove deals filter:DealsClear all
Sort: Best Match
    REI Co-opLightweight Base Layer Bottoms - Men's
    $29.93 - $44.95
    Top Rated
    32 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big, Tall
    REI Co-opLightweight Long-Sleeve Crew Base Layer Top - Men's
    $29.93 - $44.95
    Top Rated
    53 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    REI Co-opLightweight Half-Zip Base Layer Top - Men's
    $34.93 - $49.95
    25 reviews with an average rating of 4.4 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big
    REI Co-opMerino 185 Base Layer Bottoms - Men's
    $29.83
    Save 62%
    compared to  $79.95
    175 reviews with an average rating of 4.2 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Big
    REI Co-opLightweight Crew Base Layer Top - Men's
    $24.93 - $34.95
    Top Rated
    44 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Lightweight
    Size Type:
    Regular, Big, Tall
    REI Co-opMidweight Base Layer Bottoms - Men's
    $19.83
    Save 63%
    compared to  $54.95
    Top Rated
    109 reviews with an average rating of 4.5 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Big
  • Text reads ‘happening now!’ over an image of the R E I Co-op Mastercard.

    $130 in value

    Get $30 in card rewards when you’re approved by Nov 23. Plus, earn a $100 REI gift card after your first qualifying purchase.

    Terms apply

    REI Co-opMidweight Long-Sleeve Base Layer Top - Men's
    $19.83
    Save 63%
    compared to  $54.95
    Top Rated
    225 reviews with an average rating of 4.6 out of 5 stars
    Underwear Weight:
    Midweight
    Size Type:
    Regular
  • A yellow Member Bonus Card and two holiday-themed gift cards on a light colored background.

    Give the gift of the outdoors

    Members, get a $25 bonus e-card when you buy a $130+ gift card. Terms apply.

    Shop gift cards
Sort: Best Match

Related Expert Advice articles

Illustration of a hand holding a phone.

Checkout faster

Track your order, shop and save— all in one place

Get the REI app