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REI Co-op
Clothing
Underwear

REI Co-op Moisture Wicking Underwear

(65 products)

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REI Co-opMerino Boxer Briefs - Men's
$39.95
120 reviews with an average rating of 4.2 out of 5 stars
Size Type:
Regular, Big
Add Merino Boxer Briefs - Men's to Compare
REI Co-opMerino Bikini Underwear - Women's
$27.95
62 reviews with an average rating of 4.1 out of 5 stars
Size Type:
Regular, Plus
Add Merino Bikini Underwear - Women's to Compare
REI Co-opMerino Hipster Underwear - Women's
$29.95
60 reviews with an average rating of 3.9 out of 5 stars
Size Type:
Regular, Plus
Add Merino Hipster Underwear - Women's to Compare
Top Rated
REI Co-opMidweight Base Layer Half-Zip Top - Men's
$29.93
Save 50%
compared to $59.95
199 reviews with an average rating of 4.7 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big, Tall
Add Midweight Base Layer Half-Zip Top - Men's to Compare
REI Co-opActive Briefs - Women's
$19.95
43 reviews with an average rating of 4.1 out of 5 stars
Size Type:
Regular, Plus
Add Active Briefs - Women's to Compare
REI Co-opEveryday Boxers - Men's
$24.95
147 reviews with an average rating of 4.2 out of 5 stars
Size Type:
Regular, Big
Add Everyday Boxers - Men's to Compare
REI Co-opActive Bikini Underwear - Women's
$19.95
58 reviews with an average rating of 3.4 out of 5 stars
Size Type:
Regular, Plus
Add Active Bikini Underwear - Women's to Compare
Top Rated
REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Men's
$44.93
Save 50%
compared to $89.95
146 reviews with an average rating of 4.5 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Big
Add Merino 185 Long-Sleeve Half-Zip Base Layer Top - Men's to Compare
Top Rated
REI Co-opMerino 185 Long-Sleeve Base Layer Top - Men's
$39.93
Save 50%
compared to $79.95
232 reviews with an average rating of 4.6 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Big
Add Merino 185 Long-Sleeve Base Layer Top - Men's to Compare
REI Co-opMerino 185 Long-Sleeve Base Layer Top - Women's
$39.83
Save 50%
compared to $79.95
248 reviews with an average rating of 4.4 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
Add Merino 185 Long-Sleeve Base Layer Top - Women's to Compare
REI Co-opMidweight Long-Sleeve Base Layer Top - Women's
$26.83
Save 51%
compared to $54.95
333 reviews with an average rating of 4.2 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Plus, Regular
Add Midweight Long-Sleeve Base Layer Top - Women's to Compare
Top Rated
REI Co-opLightweight Base Layer Bottoms - Men's
$44.95
31 reviews with an average rating of 4.6 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Big, Tall
Add Lightweight Base Layer Bottoms - Men's to Compare
Top Rated
REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Women's
$44.83
Save 50%
compared to $89.95
114 reviews with an average rating of 4.5 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
Add Merino 185 Long-Sleeve Half-Zip Base Layer Top - Women's to Compare
REI Co-opActive Hipster Underwear - Women's
$19.95
44 reviews with an average rating of 3.8 out of 5 stars
Size Type:
Regular, Plus
Add Active Hipster Underwear - Women's to Compare
Top Rated
REI Co-opLightweight Long-Sleeve Crew Base Layer Top - Women's
$44.95
47 reviews with an average rating of 4.5 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Plus
Add Lightweight Long-Sleeve Crew Base Layer Top - Women's to Compare
REI Co-opMerino Boxers - Men's
$39.95
87 reviews with an average rating of 4.4 out of 5 stars
Size Type:
Big, Regular
Add Merino Boxers - Men's to Compare
Top Rated
REI Co-opMidweight Long-Sleeve Base Layer Top - Men's
$26.93
Save 50%
compared to $54.95
219 reviews with an average rating of 4.6 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
Add Midweight Long-Sleeve Base Layer Top - Men's to Compare
Top Rated
REI Co-opLightweight Half-Zip Base Layer Top - Women's
$49.95
19 reviews with an average rating of 4.7 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Plus
Add Lightweight Half-Zip Base Layer Top - Women's to Compare
REI Co-opMerino 185 Base Layer Top - Women's
$34.83
Save 50%
compared to $69.95
71 reviews with an average rating of 4.2 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
Add Merino 185 Base Layer Top - Women's to Compare
REI Co-opMerino 185 Long-Sleeve Crew Base Layer Top - Women's
$84.95
0 reviews
Underwear Weight:
Lightweight
Size Type:
Regular, Plus
Add Merino 185 Long-Sleeve Crew Base Layer Top - Women's to Compare
Top Rated
REI Co-opLightweight Crew Base Layer Top - Men's
$34.95
42 reviews with an average rating of 4.6 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Big
Add Lightweight Crew Base Layer Top - Men's to Compare
REI Co-opMidweight Base Layer Tights - Women's
$26.83
Save 51%
compared to $54.95
129 reviews with an average rating of 4.3 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Plus, Petite
Add Midweight Base Layer Tights - Women's to Compare
REI Co-opMerino 185 Half-Zip Base Layer Top - Women's
$89.95
0 reviews
Underwear Weight:
Lightweight
Size Type:
Regular, Plus
Add Merino 185 Half-Zip Base Layer Top - Women's to Compare
REI Co-opMerino 185 Crew Base Layer Top - Women's
$74.95
0 reviews
Underwear Weight:
Lightweight
Size Type:
Regular, Plus
Add Merino 185 Crew Base Layer Top - Women's to Compare
REI Co-opMerino 185 Base Layer Bottoms - Women's
$84.95
0 reviews
Underwear Weight:
Lightweight
Size Type:
Petite, Regular, Plus
Add Merino 185 Base Layer Bottoms - Women's to Compare
REI Co-opMerino 185 Long-Sleeve Crew Base Layer Top - Men's
$84.95
0 reviews
Underwear Weight:
Lightweight
Size Type:
Regular, Big, Tall
Add Merino 185 Long-Sleeve Crew Base Layer Top - Men's to Compare
REI Co-opActive Thong Underwear - Women's
$16.95
31 reviews with an average rating of 4.3 out of 5 stars
Size Type:
Regular, Plus
Add Active Thong Underwear - Women's to Compare
REI Co-opMerino 185 Crew Base Layer Top - Men's
$74.95
0 reviews
Underwear Weight:
Lightweight
Size Type:
Regular, Big, Tall
Add Merino 185 Crew Base Layer Top - Men's to Compare
REI Co-opMidweight Base Layer Half-Zip Top - Women's
$29.83
Save 50%
compared to $59.95
204 reviews with an average rating of 4.4 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Plus
Add Midweight Base Layer Half-Zip Top - Women's to Compare
Top Rated
REI Co-opLightweight Base Layer Bottoms - Kids'
$29.95
11 reviews with an average rating of 4.7 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
Add Lightweight Base Layer Bottoms - Kids' to Compare

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1–30 of 65 products

Sort: Best Match

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Our gear reviewer and REI Co-op Member tester evaluated this four-person camp shelter in windy Wyoming. Here's how it performed.

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