underwear at REI | REI Co-op

SaxxDropTemp Cooling Mesh Boxer Briefs - Men's

$26.73

Save 29%

compared to $38.00

38 reviews with an average rating of 3.9 out of 5 stars

REI OUTLET

Kari TraaEmbla Wool Boxer Briefs - Women's

$40.00

0 reviews

Free FlyElevate Boxer Briefs - Men's

$28.73

Save 24%

compared to $38.00

42 reviews with an average rating of 4.0 out of 5 stars

REI OUTLET

Boody Eco WearBoyleg Briefs - Women's - Package of 2

$22.73

Save 18%

compared to $27.95

9 reviews with an average rating of 3.0 out of 5 stars

REI OUTLET

REI Co-opMerino 185 Base Layer Bottoms - Men's

$39.83 - $79.95

126 reviews with an average rating of 4.3 out of 5 stars

SmartwoolIntraknit Bikini Underwear - Women's

$34.00

5 reviews with an average rating of 1.8 out of 5 stars

RONHILLShort Underwear - Women's

$23.73

Save 32%

compared to $34.95

1 reviews with an average rating of 3.0 out of 5 stars

REI OUTLET

RONHILLBrief Underwear - Women's

$19.73

Save 34%

compared to $29.95

0 reviews

REI OUTLET

RONHILLThong Underwear - Women's

$16.73

Save 32%

compared to $24.95

0 reviews

REI OUTLET

REI Co-opEveryday Briefs - Men's

$19.95

93 reviews with an average rating of 3.5 out of 5 stars

Top Rated

REI Co-opActive Thong Underwear - Women's

$14.95

18 reviews with an average rating of 4.6 out of 5 stars

REI Co-opMerino Thong Underwear - Women's

$24.95

32 reviews with an average rating of 4.2 out of 5 stars

SmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Women's

$62.93 - $90.00

105 reviews with an average rating of 4.4 out of 5 stars

Top Rated

IcebreakerMerino 260 Tech Long-Sleeve Half-Zip Base Layer Top - Women's

$135.00

24 reviews with an average rating of 4.6 out of 5 stars

Top Rated

SmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Men's

$66.93 - $90.00

56 reviews with an average rating of 4.6 out of 5 stars

SmartwoolClassic All-Season Merino T-Shirt - Men's

$80.00

61 reviews with an average rating of 4.1 out of 5 stars

SmartwoolClassic Thermal Merino Base Layer Bottoms - Women's

$79.93 - $115.00

734 reviews with an average rating of 4.5 out of 5 stars

REI Co-opMerino 185 Long-Sleeve Base Layer Top - Women's

$55.93 - $79.95

195 reviews with an average rating of 4.4 out of 5 stars

REI Co-opLightweight Long-Sleeve Crew Base Layer Top - Men's

$39.95

3 reviews with an average rating of 5.0 out of 5 stars

Top Rated

REI Co-opLightweight Long-Sleeve Crew Base Layer Top - Women's

$39.95

11 reviews with an average rating of 4.7 out of 5 stars

REI Co-opMerino 185 Long-Sleeve Base Layer Top - Men's

$55.93 - $79.95

170 reviews with an average rating of 4.5 out of 5 stars

REI Co-opMidweight Long-Sleeve Base Layer Top - Women's

$54.95

240 reviews with an average rating of 4.2 out of 5 stars

SmartwoolClassic All-Season Merino Quarter-Zip Base Layer Top - Men's

$70.93 - $95.00

1 reviews with an average rating of 5.0 out of 5 stars

REI Co-opMerino 185 Base Layer Top - Women's

$48.93 - $69.95

43 reviews with an average rating of 4.3 out of 5 stars

REI Co-opLightweight Crew Base Layer Top - Women's

$29.95

3 reviews with an average rating of 5.0 out of 5 stars

SmartwoolClassic All-Season Merino Base Layer Bottoms - Men's

$66.93 - $90.00

18 reviews with an average rating of 4.1 out of 5 stars

PEARL iZUMiTransfer Liner Shorts - Men's

$65.00

10 reviews with an average rating of 3.9 out of 5 stars

REI Co-opMerino 185 Base Layer Bottoms - Women's

$79.95

103 reviews with an average rating of 4.3 out of 5 stars

REI Co-opLightweight Half-Zip Base Layer Top - Women's

$44.95

1 reviews with an average rating of 5.0 out of 5 stars

REI Co-opMidweight Base Layer Bottoms - Men's

$54.95

77 reviews with an average rating of 4.4 out of 5 stars