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Wool Base Layers

(252 products)

Products (252)

Sort: Best Match

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
Underwear Weight:
Midweight
Size Type:
Regular, Big
Icebreaker150 Anatomica Crewe Base Layer Top - Men's
$75.00
5 reviews with an average rating of 4.4 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Big
Top Rated
Arms of Andes300 Lightweight Alpaca Wool Base Layer Leggings - Women's
$105.00
8 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
REI Co-opMerino 185 Base Layer Top - Men's
$69.95
50 reviews with an average rating of 4.2 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Big
Top Rated
IcebreakerMerino 150 Tech Lite III Relaxed T-Shirt - Women's
$80.00
64 reviews with an average rating of 4.6 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
Arms of Andes160 Ultralight Alpaca Wool Crew Neck Base Layer T-Shirt - Women's
$75.00
2 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Ultralightweight
Size Type:
Regular
Icebreaker125 Cool-Lite Merino Blend Sphere III Scoop T-Shirt - Women's
$51.93 - $75.00
17 reviews with an average rating of 4.2 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
Icebreaker200 Oasis Cloud Dye Base Layer Leggings - Men's
$115.00
0 reviews
Underwear Weight:
Lightweight
Size Type:
Regular, Big
Icebreaker260 ZoneKnit Long-Sleeve Crewe Thermal Top - Men's
$165.00
3 reviews with an average rating of 4.3 out of 5 stars
Underwear Weight:
Heavyweight
Size Type:
Regular
Top Rated
tasc PerformanceElevation Merino T-Shirt - Women's
$54.73
Save 30%
compared to $79.00
73 reviews with an average rating of 4.5 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Plus
REI OUTLET
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
Underwear Weight:
Midweight
Size Type:
Regular, Big
Ortovox120 Comp Light Base Layer Hoody - Men's
$120.00
1 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular
SmartwoolClassic All-Season Merino Base Layer Bottoms - Women's
$90.00
95 reviews with an average rating of 4.2 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Plus
Ortovox120 Cool Tec Clean Base Layer T-Shirt - Men's
$90.00
0 reviews
Underwear Weight:
Lightweight
Size Type:
Regular, Big
tasc PerformanceElevation Merino Base Layer Bottoms - Women's
$54.73
Save 30%
compared to $79.00
51 reviews with an average rating of 4.1 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Plus
REI OUTLET
Terramar1.0 All-Season Lightweight Merino Wool T-Shirt - Women's
$34.73
Save 30%
compared to $50.00
0 reviews
Underwear Weight:
Lightweight
Size Type:
Regular
REI OUTLET
SmartwoolIntraknit Active Base Layer Bottoms - Men's
$76.93 - $110.00
1 reviews with an average rating of 3.0 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Big, Regular
Ortovox230 Competition Long Base Layer Pants - Men's
$100.00
1 reviews with an average rating of 4.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
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
Underwear Weight:
Midweight
Size Type:
Big
SmartwoolClassic Thermal Merino Lettuce Edge Crew Base Layer Top - Women's
$82.73
Save 28%
compared to $115.00
0 reviews
Underwear Weight:
Midweight
Size Type:
Regular
REI OUTLET
tasc PerformanceElevation Merino Base Layer Bottoms - Men's
$54.73
Save 30%
compared to $79.00
28 reviews with an average rating of 3.9 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Regular, Big
REI OUTLET
Icebreaker200 Sonebula Leggings - Men's
$89.73
Save 25%
compared to $120.00
4 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
REI OUTLET
SmartwoolClassic Thermal Merino Lettuce Edge Base Layer Bottoms - Women's
$82.73
Save 28%
compared to $115.00
0 reviews
Underwear Weight:
Midweight
Size Type:
Regular
REI OUTLET
Helly HansenMerino Wool Base Layer Set - Kids'
$82.73
Save 31%
compared to $120.00
0 reviews
Underwear Weight:
Lightweight
Size Type:
Regular
REI OUTLET
Top Rated
IcebreakerMerino 260 Tech Long-Sleeve Half-Zip Thermal Base Layer Top - Women's
$99.73
Save 26%
compared to $135.00
20 reviews with an average rating of 4.7 out of 5 stars
Underwear Weight:
Heavyweight
Size Type:
Regular, Plus
REI OUTLET
Helly HansenLIFA Merino Midweight Balaclava Base Layer Hoodie - Men's
$104.73
Save 30%
compared to $150.00
0 reviews
Underwear Weight:
Midweight
Size Type:
Regular
REI OUTLET
Helly HansenHH Graphic LIFA Merino Base Layer Set - Kids'
$54.73
Save 31%
compared to $80.00
0 reviews
Underwear Weight:
Midweight
Size Type:
Regular
REI OUTLET
Kari TraaSummer Wool Base Layer Pants - Women's
$49.73
Save 28%
compared to $70.00
0 reviews
Underwear Weight:
Lightweight
Size Type:
Regular
REI OUTLET
SmartwoolClassic All-Season Merino Base Layer Long-Sleeve Shirt - Women's
$66.73
Save 25%
compared to $90.00
3 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
REI OUTLET
ArtilectDarkhorse 185 Zoned Quarter-Zip Base Layer Top - Men's
$116.73
Save 31%
compared to $170.00
0 reviews
Underwear Weight:
Midweight
Size Type:
Regular
REI OUTLET

91–120 of 252 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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