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Base Layer

(385 products)

Products (385)

Sort: Best Match

NRSH2Core Lightweight Union Suit - Men's
$109.95
2 reviews with an average rating of 3.0 out of 5 stars
PatagoniaNether Bike Liner Shorts - Women's
$69.00
0 reviews
Top Rated
The North FaceSummit Series Pro 120 Crew Base Layer Top - Women's
$100.00
12 reviews with an average rating of 5.0 out of 5 stars
The North FaceFD Pro 160 Base Layer Tights - Women's
$70.00
47 reviews with an average rating of 4.2 out of 5 stars
Icebreaker125 Cool-Lite Merino Blend Sphere III Scoop T-Shirt - Women's
$75.00
17 reviews with an average rating of 4.2 out of 5 stars
BurtonMidweight X Base Layer Bottoms - Men's
$74.95
0 reviews
Top Rated
tasc PerformanceElevation Merino T-Shirt - Women's
$49.73 - $54.73
Save 30% - 37%
compared to $79.00
75 reviews with an average rating of 4.6 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
Helly HansenHH Durawool Graphic T-Shirt - Women's
$90.00
0 reviews
The North FaceSummit Pro 120 Base Layer Tights - Women's
$100.00
32 reviews with an average rating of 4.1 out of 5 stars
SmartwoolClassic Thermal Merino Base Layer Bottoms - Women's
$86.73
Save 24%
compared to $115.00
246 reviews with an average rating of 4.4 out of 5 stars
REI OUTLET
SmartwoolClassic All-Season Merino Base Layer Bottoms - Women's
$90.00
95 reviews with an average rating of 4.2 out of 5 stars
ZoicEveryday Bike Liner Shorts - Men's
$36.73
Save 26%
compared to $50.00
0 reviews
REI OUTLET
Top Rated
Arc'teryxRho Base Layer Hoody - Women's
$96.73
Save 19%
compared to $120.00
21 reviews with an average rating of 4.9 out of 5 stars
REI OUTLET
New arrival
Arc'teryxRho Heavyweight Zip-Neck Base Layer Top - Men's
$112.73
Save 19%
compared to $140.00
0 reviews
REI OUTLET
tasc PerformanceElevation Merino Base Layer Bottoms - Women's
$49.73 - $54.73
Save 30% - 37%
compared to $79.00
52 reviews with an average rating of 4.2 out of 5 stars
REI OUTLET
Top Rated
SmartwoolClassic Thermal Merino Crew Base Layer Top - Women's
$86.73
Save 24%
compared to $115.00
365 reviews with an average rating of 4.7 out of 5 stars
REI OUTLET
ZoicCarbon Liner Bike Shorts - Men's
$74.73
Save 25%
compared to $100.00
0 reviews
REI OUTLET
Ortovox230 Competition Long Base Layer Pants - Men's
$100.00
1 reviews with an average rating of 4.0 out of 5 stars
Ortovox185 Rock'n'wool Long Base Layer Pants - Men's
$110.00
4 reviews with an average rating of 3.5 out of 5 stars
SmartwoolClassic Thermal Merino Base Layer Quarter-Zip - Women's
$89.73
Save 25%
compared to $120.00
0 reviews
REI OUTLET
New arrival
Arc'teryxRho Base Layer Bottoms - Women's
$79.73
Save 20%
compared to $100.00
11 reviews with an average rating of 3.9 out of 5 stars
REI OUTLET
ZoicLuxe Bike Liner Shorts - Men's
$51.73
Save 26%
compared to $70.00
0 reviews
REI OUTLET
Top Rated
SmartwoolClassic All Season Merino Long-Sleeve Base Layer Top - Men's
$67.73
Save 24%
compared to $90.00
56 reviews with an average rating of 4.6 out of 5 stars
REI OUTLET
tasc PerformanceElevation Merino T-Shirt - Men's
$49.73 - $54.73
Save 30% - 37%
compared to $79.00
38 reviews with an average rating of 4.2 out of 5 stars
REI OUTLET
Top Rated
IcebreakerMerino 200 Oasis Long-Sleeve Crewe Thermal Top - Women's
$78.73
Save 25%
compared to $105.00
122 reviews with an average rating of 4.7 out of 5 stars
REI OUTLET
New arrival
Arc'teryxRho Boot Cut Base Layer Bottoms - Women's
$72.73
Save 19%
compared to $90.00
0 reviews
REI OUTLET
tasc PerformanceElevation Merino Base Layer Bottoms - Men's
$49.73 - $54.73
Save 30% - 37%
compared to $79.00
29 reviews with an average rating of 3.8 out of 5 stars
REI OUTLET
Top Rated
Arc'teryxRho Insulated 3/4 Base Layer Bottoms - Men's
$159.73
Save 20%
compared to $200.00
12 reviews with an average rating of 4.6 out of 5 stars
REI OUTLET
IcebreakerMerino 200 Oasis Thermal Base Layer Leggings - Women's
$78.73
Save 25%
compared to $105.00
66 reviews with an average rating of 4.4 out of 5 stars
REI OUTLET

151–180 of 385 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