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Men's Base Layers

(139 products)

Products (139)

Sort: Best Match

PatagoniaCapilene Thermal Weight Long-Underwear Bottoms - Men's
$99.00
14 reviews with an average rating of 4.0 out of 5 stars
Arms of Andes300 Lightweight Alpaca Wool Half-Zip Base Layer Top - Men's
$135.00
15 reviews with an average rating of 3.9 out of 5 stars
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
Arms of Andes160 Ultralight Alpaca Wool Long-Sleeve Base Layer Shirt - Men's
$85.00
9 reviews with an average rating of 3.9 out of 5 stars
Top Rated
SmartwoolClassic Thermal Merino 3/4 Base Layer Bottoms - Men's
$105.00
84 reviews with an average rating of 4.7 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
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
Top Rated
IcebreakerMerino 260 Tech Long-Sleeve Crewe Thermal Top - Men's
$36.83 - $125.00
55 reviews with an average rating of 4.7 out of 5 stars
New arrival
Icebreaker125 ZoneKnit Base Layer Leggings - Men's
$125.00
0 reviews
New arrival
Icebreaker125 ZoneKnit Long-Sleeve Crewe Base Layer Top - Men's
$125.00
4 reviews with an average rating of 5.0 out of 5 stars
Arms of Andes300 Alpaca Wool Long-Sleeve Crew Base Layer Top - Men's
$130.00
7 reviews with an average rating of 3.6 out of 5 stars
PatagoniaCapilene Thermal Weight Zip-Neck Top - Men's
$109.00
17 reviews with an average rating of 4.2 out of 5 stars
SmartwoolClassic Thermal Merino Colorblock Crew Base Layer Top - Men's
$83.93 - $120.00
1 reviews with an average rating of 5.0 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
IcebreakerMerino 260 Tech Long-Sleeve Half-Zip Base Layer Top - Men's
$135.00
29 reviews with an average rating of 4.6 out of 5 stars
Top Rated
IcebreakerMerino 200 Oasis Base Layer Leggings with Fly - Men's
$30.83 - $105.00
49 reviews with an average rating of 4.7 out of 5 stars
Icebreaker200 Oasis Crewe Base Layer Top - Men's
$95.00
28 reviews with an average rating of 4.5 out of 5 stars
Top Rated
REI Co-opLightweight Crew Base Layer Top - Men's
$29.95
5 reviews with an average rating of 4.8 out of 5 stars
REI Co-opLightweight Half-Zip Base Layer Top - Men's
$44.95
1 reviews with an average rating of 5.0 out of 5 stars
Top Rated
Icebreaker200 Oasis Long-Sleeve Half-Zip Base Layer Top - Men's
$115.00
16 reviews with an average rating of 4.8 out of 5 stars
Top Rated
Arc'teryxIonia Merino Wool Base Layer Top - Men's
$90.00
36 reviews with an average rating of 4.6 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
PatagoniaCapilene Thermal Weight Long Underwear Crew Top - Men's
$99.00
9 reviews with an average rating of 4.2 out of 5 stars
SmartwoolIntraknit Thermal Merino Base Layer Bottoms - Men's
$130.00
21 reviews with an average rating of 4.2 out of 5 stars
Helly HansenLIFA Merino Midweight Base Layer Hoodie - Men's
$120.00
0 reviews
SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Men's
$90.93 - $130.00
186 reviews with an average rating of 4.4 out of 5 stars
Ortovox230 Competition Zip-Neck Base Layer Top - Men's
$120.00
3 reviews with an average rating of 3.7 out of 5 stars
NRSH2Core Lightweight Union Suit - Men's
$109.95
2 reviews with an average rating of 3.0 out of 5 stars
Top Rated
SmartwoolClassic Thermal Merino Quarter-Zip Base Layer Top - Men's
$83.93 - $120.00
15 reviews with an average rating of 4.9 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

31–60 of 139 products

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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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