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Mens Wool Underwear

(96 products)

Products (96)

Sort: Best Match

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
SmartwoolClassic All-Season Merino T-Shirt - Men's
$59.93 - $80.00
56 reviews with an average rating of 4.1 out of 5 stars
REI Co-opMerino Boxers - Men's
$39.95
64 reviews with an average rating of 4.3 out of 5 stars
Ortovox185 Merino Rock'n'wool Long-Sleeve Base Layer Top - Men's
$110.00
10 reviews with an average rating of 4.2 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
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
REI Co-opMerino 185 Base Layer Top - Men's
$48.93 - $69.95
52 reviews with an average rating of 4.2 out of 5 stars
Top Rated
SmartwoolIntraknit Thermal Merino Base Layer Quarter-Zip Top - Men's
$69.83 - $140.00
11 reviews with an average rating of 4.9 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
Arms of Andes160 Ultralight Alpaca Wool Crewneck Base Layer T-Shirt - Men's
$75.00
4 reviews with an average rating of 3.5 out of 5 stars
Top Rated
SmartwoolClassic Thermal Merino Base Layer Bottoms - Men's
$115.00
615 reviews with an average rating of 4.7 out of 5 stars
Arms of Andes160 Ultralight Alpaca Wool Long-Sleeve Base Layer Shirt - Men's
$85.00
10 reviews with an average rating of 3.6 out of 5 stars
REI Co-opHeavyweight Merino Long-Sleeve Base Layer Crew Top - Men's
$49.83 - $99.95
21 reviews with an average rating of 4.3 out of 5 stars
REI Co-opHeavyweight Merino Base Layer Half-Zip Top - Men's
$49.83 - $104.95
14 reviews with an average rating of 3.9 out of 5 stars
REI Co-opHeavyweight Merino Base Layer Bottoms - Men's
$49.83
Save 50%
compared to $99.95
7 reviews with an average rating of 4.4 out of 5 stars
Helly HansenLifa Merino Midweight Base Layer Pants - Men's
$100.00
1 reviews with an average rating of 5.0 out of 5 stars
tasc PerformanceElevation Merino Base Layer Bottoms - Men's
$49.73
Save 37%
compared to $79.00
29 reviews with an average rating of 3.8 out of 5 stars
REI OUTLET
Ortovox120 Comp Light Base Layer Hoody - Men's
$120.00
2 reviews with an average rating of 5.0 out of 5 stars
Top Rated
IcebreakerMerino 260 Tech Long-Sleeve Half-Zip Base Layer Top - Men's
$135.00
34 reviews with an average rating of 4.5 out of 5 stars
Top Rated
SmartwoolClassic Thermal Merino Base Layer Quarter-Zip - Men's
$89.73
Save 25%
compared to $120.00
16 reviews with an average rating of 4.6 out of 5 stars
REI OUTLET
Icebreaker150 Anatomica Crewe Base Layer Top - Men's
$75.00
10 reviews with an average rating of 4.4 out of 5 stars
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
REI OUTLET
Top Rated
Arc'teryxIonia Merino Wool Base Layer Hoody - Men's
$140.00
49 reviews with an average rating of 4.9 out of 5 stars
Top Rated
Arc'teryxIonia Merino Wool Base Layer Top - Men's
$90.00
37 reviews with an average rating of 4.6 out of 5 stars
Arc'teryxRho Merino Wool Zip-Neck Base Layer Top - Men's
$98.83
Save 29%
compared to $140.00
10 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
Top Rated
Arc'teryxRho Merino Wool Crew Neck Base Layer Top - Men's
$84.83 - $120.00
27 reviews with an average rating of 4.8 out of 5 stars
Ortovox185 Rock'n'wool Short Base Layer Pants - Men's
$100.00
5 reviews with an average rating of 4.2 out of 5 stars
Arms of Andes300 Lightweight Alpaca Wool Half-Zip Base Layer Top - Men's
$135.00
14 reviews with an average rating of 3.9 out of 5 stars
Arms of Andes160 Ultralight Alpaca Wool Base Layer Leggings - Men's
$85.00
2 reviews with an average rating of 5.0 out of 5 stars

1–30 of 96 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