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Long Sleeve Men's Base Layers

(83 products)

Products (83)

Sort: Best Match

Top Rated
REI Co-opMidweight Long-Sleeve Base Layer Top - Men's
$54.95
167 reviews with an average rating of 4.5 out of 5 stars
Top Rated
SmartwoolClassic Thermal Merino Crew Base Layer Top - Men's
$115.00
1490 reviews with an average rating of 4.7 out of 5 stars
Top Rated
PatagoniaCapilene Midweight Crew Base Layer Top - Men's
$89.00
81 reviews with an average rating of 4.5 out of 5 stars
SmartwoolClassic All-Season Merino Long-Sleeve Base Layer Top - Men's
$66.93 - $90.00
66 reviews with an average rating of 4.5 out of 5 stars
REI Co-opHeavyweight Merino Long-Sleeve Base Layer Crew Top - Men's
$99.95
23 reviews with an average rating of 4.4 out of 5 stars
Top Rated
SmartwoolClassic Thermal Merino Quarter-Zip Base Layer Top - Men's
$120.00
21 reviews with an average rating of 4.7 out of 5 stars
Top Rated
PatagoniaCapilene Midweight Zip-Neck Base Layer Top - Men's
$49.83 - $99.00
63 reviews with an average rating of 4.5 out of 5 stars
Top Rated
REI Co-opMerino 185 Long-Sleeve Base Layer Top - Men's
$79.95
188 reviews with an average rating of 4.5 out of 5 stars
REI Co-opLightweight Long-Sleeve Crew Base Layer Top - Men's
$27.93 - $39.95
13 reviews with an average rating of 4.4 out of 5 stars
tasc PerformanceElevation Merino T-Shirt - Men's
$34.73 - $54.73
Save 30% - 56%
compared to $79.00
41 reviews with an average rating of 4.2 out of 5 stars
REI OUTLET
SmartwoolClassic All-Season Merino Quarter-Zip Base Layer Top - Men's
$95.00
4 reviews with an average rating of 4.8 out of 5 stars
PatagoniaCapilene Thermal Weight Zip-Neck Top - Men's
$109.00
21 reviews with an average rating of 4.0 out of 5 stars
Top Rated
REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Men's
$89.95
110 reviews with an average rating of 4.6 out of 5 stars
Top Rated
REI Co-opLightweight Half-Zip Base Layer Top - Men's
$29.93 - $44.95
8 reviews with an average rating of 4.9 out of 5 stars
SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Men's
$130.00
189 reviews with an average rating of 4.4 out of 5 stars
REI Co-opHeavyweight Merino Base Layer Half-Zip Top - Men's
$104.95
15 reviews with an average rating of 3.9 out of 5 stars
Top Rated
SmartwoolIntraknit Thermal Merino Base Layer Quarter-Zip Top - Men's
$140.00
11 reviews with an average rating of 4.9 out of 5 stars
Top Rated
REI Co-opMidweight Base Layer Half-Zip Top - Men's
$29.83 - $59.95
154 reviews with an average rating of 4.6 out of 5 stars
SmartwoolThermal Merino Base Layer Hoodie - Men's
$145.00
1 reviews with an average rating of 5.0 out of 5 stars
SmartwoolIntraknit Thermal Merino Base Layer Hoodie - Men's
$180.00
0 reviews
SmartwoolIntraknit Thermal Max Merino Quarter-Zip Base Layer Top - Men's
$155.00
0 reviews
SmartwoolIntraknit Thermal Merino Crew Base Layer Top - Men's
$92.73
Save 28%
compared to $130.00
9 reviews with an average rating of 4.1 out of 5 stars
REI OUTLET
Top Rated
SmartwoolClassic Thermal Merino Base Layer Quarter-Zip - Men's
$89.73
Save 25%
compared to $120.00
21 reviews with an average rating of 4.7 out of 5 stars
REI OUTLET
Top Rated
Arc'teryxRho LT Zip-Neck Base Layer Top - Men's
$120.00
94 reviews with an average rating of 4.6 out of 5 stars
Arc'teryxRho Merino Wool Zip-Neck Base Layer Top - Men's
$140.00
11 reviews with an average rating of 4.3 out of 5 stars
Helly HansenLifa Merino Midweight Crew Base Layer Top - Men's
$105.00
0 reviews
PatagoniaCapilene Thermal Weight Long Underwear Crew Top - Men's
$99.00
10 reviews with an average rating of 4.3 out of 5 stars
Top Rated
Arc'teryxRho LT Crew Neck Base Layer Top - Men's
$100.00
30 reviews with an average rating of 4.8 out of 5 stars
Free CountryCloud Knit Crewneck Base Layer Top - Men's
$26.73
Save 33%
compared to $40.00
1 reviews with an average rating of 5.0 out of 5 stars
REI OUTLET
Free CountryForce Grid Fleece Base Layer Top - Men's
$29.73
Save 33%
compared to $45.00
4 reviews with an average rating of 4.5 out of 5 stars
REI OUTLET

1–30 of 83 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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