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Men's Underwear: Deals

(94 products)

Products (94)

Sort: Best Match

New arrival
SmartwoolIntraknit Thermal Merino Base Layer Colorblock Crew - Men's
$97.73
Save 24%
compared to $130.00
11 reviews with an average rating of 4.4 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
REI OUTLET
SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Men's
$97.73
Save 24%
compared to $130.00
9 reviews with an average rating of 4.1 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
REI OUTLET
Top Rated
IcebreakerMerino 200 Sonebula Long-Sleeve Crewe Base Layer Top - Men's
$89.73
Save 25%
compared to $120.00
6 reviews with an average rating of 4.5 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
REI OUTLET
Icebreaker125 ZoneKnit Crewe Base Layer Shirt - Men's
$86.73
Save 24%
compared to $115.00
3 reviews with an average rating of 4.0 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Big
REI OUTLET
SaxxRoast Master Midweight Base Layer Bottoms - Men's
$52.73
Save 29%
compared to $75.00
0 reviews
Underwear Weight:
Midweight
Size Type:
Regular, Big
REI OUTLET
Icebreaker200 ZoneKnit Merino Thermal Base Layer Leggings - Men's
$109.73
Save 26%
compared to $150.00
6 reviews with an average rating of 4.2 out of 5 stars
Size Type:
Regular, Big
REI OUTLET
Top Rated
IcebreakerMerino 125 ZoneKnit Long-Sleeve Half-Zip Base Layer Top - Men's
$99.73
Save 26%
compared to $135.00
10 reviews with an average rating of 4.8 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Big
REI OUTLET
Top Rated
Icebreaker125 ZoneKnit Merino Long-Sleeve Crewe Thermal Top - Men's
$93.73
Save 25%
compared to $125.00
6 reviews with an average rating of 4.8 out of 5 stars
Underwear Weight:
Ultralightweight
Size Type:
Regular, Big
REI OUTLET
Top Rated
ArtilectDarkhorse 185 Zoned Crew Base Layer Top - Men's
$109.73
Save 31%
compared to $160.00
7 reviews with an average rating of 4.6 out of 5 stars
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
Top Rated
IcebreakerMerino 260 Tech Long-Sleeve Half-Zip Thermal Base Layer Top - Men's
$99.73
Save 26%
compared to $135.00
34 reviews with an average rating of 4.5 out of 5 stars
Underwear Weight:
Heavyweight
Size Type:
Regular, Big
REI OUTLET
New arrival
Arc'teryxRho LT Base Layer Bottoms - Men's
$79.73
Save 20%
compared to $100.00
0 reviews
Underwear Weight:
Midweight
Size Type:
Regular, Big
REI OUTLET
New arrival
SmartwoolIntraknit Active Base Layer Bottoms - Men's
$82.73
Save 24%
compared to $110.00
1 reviews with an average rating of 3.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
REI OUTLET
StancePalmer Boxer Briefs - Men's
$18.73
Save 25%
compared to $25.00
0 reviews
Size Type:
Regular, Big
REI OUTLET
Top Rated
Icebreaker200 ZoneKnit Long-Sleeve Crewe Base Layer Thermal Top - Men's
$109.73
Save 26%
compared to $150.00
6 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
REI OUTLET
SmartwoolIntraknit Active Base Layer Crew Shirt - Men's
$81.73
Save 25%
compared to $110.00
1 reviews with an average rating of 4.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Big, Regular
REI OUTLET
Top Rated
IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Men's
$78.73
Save 25%
compared to $105.00
60 reviews with an average rating of 4.6 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Big, Regular
REI OUTLET
Top Rated
IcebreakerMerino 260 Tech Thermal Base Layer Leggings With Fly - Men's
$93.73
Save 25%
compared to $125.00
34 reviews with an average rating of 4.8 out of 5 stars
Underwear Weight:
Heavyweight
Size Type:
Regular, Big
REI OUTLET
ArtilectFlatiron 185 Crew Base Layer Top - Men's
$96.73 - $109.73
Save 30% - 31%
compared to $140.00 - $160.00
0 reviews
Underwear Weight:
Midweight
Size Type:
Regular, Big
REI OUTLET
StanceWebbed Boxer Briefs - Men's
$19.73
Save 26%
compared to $27.00
0 reviews
Size Type:
Regular
REI OUTLET
StanceInvestor Boxer Briefs - Men's
$22.73
Save 24%
compared to $30.00
3 reviews with an average rating of 4.7 out of 5 stars
Size Type:
Regular, Big
REI OUTLET
StancePalmoflage Boxer Briefs - Men's
$19.73
Save 34%
compared to $30.00
4 reviews with an average rating of 4.5 out of 5 stars
Size Type:
Regular, Big
REI OUTLET
Top Rated
Icebreaker260 ZoneKnit Base Layer Leggings - Men's
$119.73
Save 27%
compared to $165.00
9 reviews with an average rating of 4.8 out of 5 stars
Underwear Weight:
Heavyweight
Size Type:
Regular, Big
REI OUTLET
StanceTakawitz Boxer Briefs - Men's
$19.73
Save 34%
compared to $30.00
2 reviews with an average rating of 5.0 out of 5 stars
Size Type:
Regular, Big
REI OUTLET
ArtilectFlatiron 185 Base Layer Leggings - Men's
$109.73
Save 31%
compared to $160.00
0 reviews
Underwear Weight:
Midweight
Size Type:
Regular, Big
REI OUTLET
StanceTrail Bound Boxer Briefs - Men's
$19.73
Save 34%
compared to $30.00
1 reviews with an average rating of 5.0 out of 5 stars
Size Type:
Regular
REI OUTLET
StanceRickter Wholester Boxer Briefs - Men's
$24.73
Save 29%
compared to $35.00
1 reviews with an average rating of 4.0 out of 5 stars
Size Type:
Regular
REI OUTLET
StanceKahala Wholester Boxer Briefs - Men's
$24.73
Save 29%
compared to $35.00
1 reviews with an average rating of 5.0 out of 5 stars
Size Type:
Regular
REI OUTLET
StanceBurrows Wholester Boxer Briefs - Men's
$24.73
Save 29%
compared to $35.00
0 reviews
Size Type:
Regular
REI OUTLET
StanceBarnabe Wholester Boxer Briefs - Men's
$24.73
Save 29%
compared to $35.00
1 reviews with an average rating of 5.0 out of 5 stars
Size Type:
Regular
REI OUTLET