loaded 161 results

Men's Base Layers

(161 products)

Products (161)

Sort: Best Match

Showing 30 results per page
Show 90 results per page

Colors
REI Co-opMerino 185 Base Layer Bottoms - Men's
$31.83 - $79.95
83 reviews with an average rating of 4.5 out of 5 stars
Colors
REI Co-opMidweight Long-Sleeve Base Layer Top - Men's
$21.83 - $54.95
91 reviews with an average rating of 4.4 out of 5 stars
Colors
REI Co-opLightweight Base Layer Bottoms - Men's
$39.95
65 reviews with an average rating of 4.3 out of 5 stars
Colors
Top Rated
REI Co-opLightweight Base Layer Half-Zip Top - Men's
$21.83 - $44.95
89 reviews with an average rating of 4.6 out of 5 stars
Colors
Top Rated
REI Co-opMerino 185 Long-Sleeve Base Layer Top - Men's
$79.95
117 reviews with an average rating of 4.6 out of 5 stars
Colors
Top Rated
SmartwoolClassic Thermal Merino Base Layer Bottoms - Men's
$115.00
492 reviews with an average rating of 4.7 out of 5 stars
Colors
Top Rated
Icebreaker200 Oasis Crew Top - Men's
$35.83 - $78.69
Save 25% - 65%
compared to $105.00
872 reviews with an average rating of 4.8 out of 5 stars
Colors
REI Outlet
tasc PerformanceElevation Merino T-Shirt - Men's
$49.73
Save 37%
compared to $79.00
27 reviews with an average rating of 4.4 out of 5 stars
Sale Ends Dec 4
Top Rated
Icebreaker260 Tech Base Layer Leggings with Fly - Men's
$93.69
Save 25%
compared to $125.00
198 reviews with an average rating of 4.7 out of 5 stars
Sale Ends Dec 4
Colors
Top Rated
Icebreaker260 Tech Half-Zip Base Layer Top - Men's
$101.19
Save 25%
compared to $135.00
389 reviews with an average rating of 4.7 out of 5 stars
Colors
Top Rated
SmartwoolIntraknit Thermal Max Quarter-Zip Base Layer Top - Men's
$155.00
57 reviews with an average rating of 4.7 out of 5 stars
Colors
Top Rated
PatagoniaCapilene Midweight Crew Base Layer Top - Men's
$79.00
57 reviews with an average rating of 4.6 out of 5 stars
Colors
Top Rated
Arc'teryxRho Heavyweight Zip-Neck Base Layer Top - Men's
$150.00
52 reviews with an average rating of 4.6 out of 5 stars
REI Outlet
Free CountryMicrotech Heat Base Layer Bottoms - Men's
$31.73
Save 29%
compared to $45.00
1 reviews with an average rating of 5.0 out of 5 stars
Colors
REI Outlet
Free CountryForce Grid Fleece Base Layer Pants - Men's
$31.73
Save 29%
compared to $45.00
0 reviews
Colors
Top Rated
SmartwoolClassic All-Season Merino Quarter-Zip Base Layer Top - Men's
$95.00
110 reviews with an average rating of 4.6 out of 5 stars
Colors
Top Rated
REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Men's
$89.95
74 reviews with an average rating of 4.7 out of 5 stars
Colors
REI Co-opLightweight Base Layer Crew Top - Men's
$14.83 - $29.95
85 reviews with an average rating of 4.2 out of 5 stars
Colors
PatagoniaCapilene Midweight Zip-Neck Base Layer Top - Men's
$89.00
47 reviews with an average rating of 4.4 out of 5 stars
Colors
Helly HansenLifa Merino Midweight Base Layer Pants - Men's
$100.00
0 reviews
Colors
The North FaceFD Pro 160 Base Layer Tights - Men's
$70.00
1 reviews with an average rating of 5.0 out of 5 stars
Sale Ends Dec 4
Colors
Top Rated
Icebreaker200 Oasis Crewe Base Layer Top - Men's
$71.19
Save 25%
compared to $95.00
265 reviews with an average rating of 4.8 out of 5 stars
Colors
REI Outlet
tasc PerformanceElevation Merino Base Layer Bottoms - Men's
$49.73
Save 37%
compared to $79.00
18 reviews with an average rating of 4.1 out of 5 stars
Colors
Helly HansenLIFA Merino Midweight Balaclava Base Layer Hoodie - Men's
$150.00
0 reviews
Colors
Top Rated
Arc'teryxRho LT Zip-Neck Base Layer Top - Men's
$130.00
73 reviews with an average rating of 4.8 out of 5 stars
Colors
Helly HansenLifa Merino Midweight Crew Base Layer Top - Men's
$100.00
0 reviews
Colors
Ortovox185 Merino Rock'n'wool Long-Sleeve Base Layer Top - Men's
$110.00
7 reviews with an average rating of 4.3 out of 5 stars
Colors
BurtonMidweight Base Layer Crew Top - Men's

Filter

Filter by Categories

Filter by Brand

Filter by Size Type

Filter by Size

Filter by Features

Filter by Gender

Filter by Underwear Weight

Filter by Fabric Type

Filter by Color

Filter by Best Use

Filter by Fabric Pattern

Filter by Shirt Type

Filter by Sleeve Length

Filter by Sustainability

Filter by Inseam (in.)

Filter by Fly Opening

Filter by Deals

Filter by Price

Filter by Rating

REI Co-opMerino 185 Base Layer Bottoms - Men's

REI Co-opMidweight Long-Sleeve Base Layer Top - Men's

REI Co-opLightweight Base Layer Bottoms - Men's

REI Co-opLightweight Base Layer Half-Zip Top - Men's

REI Co-opMerino 185 Long-Sleeve Base Layer Top - Men's

SmartwoolClassic Thermal Merino Base Layer Bottoms - Men's

Icebreaker200 Oasis Crew Top - Men's

tasc PerformanceElevation Merino T-Shirt - Men's

Icebreaker260 Tech Base Layer Leggings with Fly - Men's

Icebreaker260 Tech Half-Zip Base Layer Top - Men's

SmartwoolIntraknit Thermal Max Quarter-Zip Base Layer Top - Men's

PatagoniaCapilene Midweight Crew Base Layer Top - Men's

Arc'teryxRho Heavyweight Zip-Neck Base Layer Top - Men's

Free CountryMicrotech Heat Base Layer Bottoms - Men's

Free CountryForce Grid Fleece Base Layer Pants - Men's

SmartwoolClassic All-Season Merino Quarter-Zip Base Layer Top - Men's

REI Co-opMerino 185 Long-Sleeve Half-Zip Base Layer Top - Men's

REI Co-opLightweight Base Layer Crew Top - Men's

PatagoniaCapilene Midweight Zip-Neck Base Layer Top - Men's

Helly HansenLifa Merino Midweight Base Layer Pants - Men's

The North FaceFD Pro 160 Base Layer Tights - Men's

Icebreaker200 Oasis Crewe Base Layer Top - Men's

tasc PerformanceElevation Merino Base Layer Bottoms - Men's

Helly HansenLIFA Merino Midweight Balaclava Base Layer Hoodie - Men's

Arc'teryxRho LT Zip-Neck Base Layer Top - Men's

Helly HansenLifa Merino Midweight Crew Base Layer Top - Men's

Ortovox185 Merino Rock'n'wool Long-Sleeve Base Layer Top - Men's

BurtonMidweight Base Layer Crew Top - Men's