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Men's Underwear: Deals

(86 products)

Products (86)

Sort: Best Match

Free FlyElevate Boxer Briefs - Men's
$28.73
Save 24%
compared to $38.00
63 reviews with an average rating of 4.0 out of 5 stars
Size Type:
Big
REI OUTLET
SmartwoolIntraknit Active Base Layer Crew Shirt - Men's
$74.73
Save 32%
compared to $110.00
4 reviews with an average rating of 3.8 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
REI OUTLET
StanceRockford 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
Helly HansenHH Durawool Crew Long-Sleeve Base Layer Top - Men's
$69.73
Save 26%
compared to $95.00
0 reviews
Underwear Weight:
Lightweight
Size Type:
Big
REI OUTLET
TerramarC-Suite Mammoth Sherpa Fleece Mid-Layer Pants - Men's
$56.73
Save 29%
compared to $80.00
2 reviews with an average rating of 3.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
REI OUTLET
StanceCedar Rock Boxer Briefs - Men's
$17.73
Save 40%
compared to $30.00
0 reviews
Size Type:
Regular
REI OUTLET
IcebreakerMerino 200 ZoneKnit Energy Wind Long-Sleeve T-Shirt - Men's
$99.93
Save 20%
compared to $125.00
2 reviews with an average rating of 5.0 out of 5 stars
IcebreakerMerino 260 ZoneKnit Long-Sleeve Half-Zip Base Layer Top - Men's
$147.93
Save 20%
compared to $185.00
1 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Heavyweight
Size Type:
Regular
Icebreaker200 ZoneKnit Long-Sleeve Crewe Base Layer Top - Men's
$119.93
Save 20%
compared to $150.00
2 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
SaxxRoast Master Midweight Long-Sleeve Crew Base Layer Top - Men's
$47.73
Save 36%
compared to $75.00
0 reviews
Underwear Weight:
Midweight
Size Type:
Big
REI OUTLET
Sale Ends Apr 5
StanceIn Paradise Boxer Briefs - Men's
$9.73
Save 63%
compared to $27.00
1 reviews with an average rating of 2.0 out of 5 stars
Size Type:
Regular
REI OUTLET
StancePedlz Fallin Boxer Briefs - Men's
$16.73
Save 44%
compared to $30.00
0 reviews
Size Type:
Regular
REI OUTLET
StanceSlipping Wholester Boxer Briefs - Men's
$24.73
Save 29%
compared to $35.00
0 reviews
Size Type:
Regular
REI OUTLET
StanceMelted Candy Wholester Boxer Briefs - Men's
$19.73
Save 43%
compared to $35.00
0 reviews
Size Type:
Regular
REI OUTLET
IcebreakerMerino 260 ZoneKnit Long-Sleeve Crew Base Layer Top- Men's
$139.93
Save 20%
compared to $175.00
1 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Heavyweight
Size Type:
Regular
IcebreakerMerino 200 ZoneKnit Long-Sleeve Half-Zip Base Layer Top - Men's
$127.93
Save 20%
compared to $160.00
0 reviews
Underwear Weight:
Midweight
Size Type:
Regular, Big
Arc'teryxRho LT Base Layer Bottoms - Men's
$79.73
Save 20%
compared to $100.00
11 reviews with an average rating of 3.9 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Big
REI OUTLET
StanceIn The Wild Wholester Boxer Briefs - Men's
$19.73
Save 43%
compared to $35.00
0 reviews
Size Type:
Regular
REI OUTLET
StancePoppyland Boxer Briefs - Men's
$14.73
Save 41%
compared to $25.00
2 reviews with an average rating of 2.0 out of 5 stars
Size Type:
Regular
REI OUTLET
Helly HansenLIFA Merino Midweight Balaclava Base Layer Hoodie - Men's
$99.93
Save 35%
compared to $155.00
1 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
Arms of Andes300 Lightweight Alpaca Wool 3/4 Base Layer Leggings - Men's
$54.83
Save 50%
compared to $110.00
1 reviews with an average rating of 4.0 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
Arms of Andes160 Ultralight Alpaca Wool Long-Sleeve Base Layer Shirt - Men's
$44.83
Save 50%
compared to $90.00
12 reviews with an average rating of 3.8 out of 5 stars
Underwear Weight:
Ultralightweight
Size Type:
Big
Arms of Andes160 Ultralight Alpaca Wool Base Layer Leggings - Men's
$41.83
Save 50%
compared to $85.00
5 reviews with an average rating of 3.8 out of 5 stars
Underwear Weight:
Ultralightweight
Size Type:
Regular
Arms of Andes300 Lightweight Alpaca Wool Base Layer Leggings - Men's
$56.83
Save 50%
compared to $115.00
15 reviews with an average rating of 4.1 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Big
Arms of Andes160 Ultralight Alpaca Wool Base Layer Leggings - Men's
$46.83
Save 50%
compared to $95.00
2 reviews with an average rating of 3.0 out of 5 stars
Underwear Weight:
Ultralightweight
Size Type:
Regular, Big
Arms of Andes300 Lightweight Alpaca Wool Half-Zip Base Layer Top - Men's
$71.83
Save 50%
compared to $145.00
16 reviews with an average rating of 3.9 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Big

61–86 of 86 products

Sort: Best Match

Related Expert Advice articles

What material is best?

Wool is moisture-wicking and odor-resistant, while synthetic fabrics are more durable and less expensive.

Match the temp to the trek

Lightweight layers are best for moderate to cool temperatures. Midweight layers are best for cold temperatures. Heavyweight layers are best for below-freezing temperatures.

Find your fit

To be able to wick sweat efficiently, your next-to-skin layer needs to actually be next to your skin. A comfortably snug fit everywhere is your goal.

Read full article: How to Choose Base Layers

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