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Merino Wool Men's Underwear

(84 products)

Products (84)

Sort: Best Match

SmartwoolIntraknit Thermal Merino Colorblock Crew Base Layer Top - Men's
$77.83 - $130.00
12 reviews with an average rating of 4.2 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Big
SmartwoolEveryday Merino Boxer Briefs - Men's
$34.73
Save 27%
compared to $48.00
0 reviews
Size Type:
Regular
REI OUTLET
Top Rated
Icebreaker200 Oasis Long-Sleeve Half-Zip Base Layer Top - Men's
$130.00
35 reviews with an average rating of 4.7 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
Top Rated
SmartwoolClassic All-Season Merino Quarter-Zip Base Layer Top - Men's
$105.00
11 reviews with an average rating of 4.7 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
SmartwoolWind Boxer Briefs - Men's
$44.73
Save 25%
compared to $60.00
0 reviews
Size Type:
Regular, Big
REI OUTLET
Sale Ends Apr 13
SmartwoolIntraknit Active Base Layer Bottoms - Men's
$69.73
Save 36%
compared to $110.00
4 reviews with an average rating of 4.5 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Big
REI OUTLET
SmartwoolIntraknit Thermal Merino Base Layer Quarter-Zip Top - Men's
$83.83 - $140.00
20 reviews with an average rating of 4.4 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
Top Rated
Arc'teryxRho Merino Wool Crew Neck Base Layer Top - Men's
$90.93
Save 24%
compared to $120.00
45 reviews with an average rating of 4.8 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
SmartwoolClassic Thermal Merino Colorblock Crew Base Layer Top - Men's
$96.73
Save 25%
compared to $130.00
0 reviews
Underwear Weight:
Midweight
Size Type:
Regular, Big
REI OUTLET
Top Rated
Icebreaker300 MerinoFine Polar Thermal Base Layer Leggings - Men's
$200.00
9 reviews with an average rating of 4.8 out of 5 stars
Underwear Weight:
Heavyweight
Size Type:
Regular
Arc'teryxRho Merino Wool Zip-Neck Base Layer Top - Men's
$105.93
Save 24%
compared to $140.00
12 reviews with an average rating of 4.3 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Big
New arrival
SmartwoolIntraknit Thermal Merino Base Layer Hoodie - Men's
$134.73
Save 25%
compared to $180.00
0 reviews
Underwear Weight:
Midweight
Size Type:
Regular, Big
REI OUTLET
SmartwoolIntraknit Thermal Merino Base Layer Bottoms - Men's
$150.00
33 reviews with an average rating of 4.4 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Big
SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Men's
$92.73
Save 28%
compared to $130.00
136 reviews with an average rating of 4.4 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
REI OUTLET
Icebreaker200 Oasis Crewe Base Layer Top - Men's
$110.00
49 reviews with an average rating of 4.3 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
Ortovox120 Comp Light Short Base Layer Pants - Men's
$70.00
3 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Big
SmartwoolIntraknit AS Merino Base Layer Crew Top - Men's
$125.00
0 reviews
Underwear Weight:
Midweight
Size Type:
Regular, Big
Arc'teryxIonia Merino Wool Base Layer Top - Men's
$90.00
46 reviews with an average rating of 4.5 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
Top Rated
IcebreakerMerino 200 Oasis Base Layer Leggings with Fly - Men's
$120.00
86 reviews with an average rating of 4.7 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
Icebreaker125 ZoneKnit Crewe Base Layer Shirt - Men's
$84.73
Save 26%
compared to $115.00
7 reviews with an average rating of 4.4 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
REI OUTLET
Top Rated
Icebreaker150 Anatomica Crewe Base Layer Top - Men's
$75.00
22 reviews with an average rating of 4.5 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
Top Rated
Icebreaker200 Sonebula Leggings - Men's
$89.73
Save 25%
compared to $120.00
5 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Big
REI OUTLET
SmartwoolClassic All-Season Merino 3/4 Base Layer Bottoms - Men's
$85.00
5 reviews with an average rating of 4.2 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Big
IcebreakerMerino 200 Oasis+ Long-Sleeve Half-Zip Thermal Base Layer Hoodie - Men's
$150.00
1 reviews with an average rating of 1.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
Top Rated
Icebreaker260 Merino Tech Thermal Leggings with Fly - Men's
$140.00
73 reviews with an average rating of 4.7 out of 5 stars
Underwear Weight:
Heavyweight
Size Type:
Regular, Big
SmartwoolClassic Thermal Merino Base Layer Crew One-Piece - Men's
$169.93
Save 32%
compared to $250.00
1 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
Arc'teryxRho Merino Wool Base Layer Bottoms - Men's
$79.93
Save 33%
compared to $120.00
5 reviews with an average rating of 3.8 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Big
Top Rated
IcebreakerMerino 200 ZoneKnit Long-Sleeve Half-Zip Base Layer Top - Men's
$119.73
Save 25%
compared to $160.00
8 reviews with an average rating of 4.5 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
REI OUTLET
REI Co-opMerino 185 Base Layer Bottoms - Men's Tall Sizes
$79.95
17 reviews with an average rating of 3.9 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Tall, Big
Arc'teryxIonia Merino Wool Long-Sleeve Base Layer Top - Men's
$120.00
0 reviews
Underwear Weight:
Midweight
Size Type:
Regular, Big

31–60 of 84 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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