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Merino Wool Men's Underwear

(89 products)

Products (89)

Sort: Best Match

Top Rated
IcebreakerAnatomica Long Boxers - Men's
$50.00
25 reviews with an average rating of 4.6 out of 5 stars
Size Type:
Regular
Ortovox230 Competition Short Base Layer Pants - Men's
$90.00
0 reviews
Underwear Weight:
Midweight
Size Type:
Regular, Big
Top Rated
IcebreakerMerino 200 Oasis Base Layer Leggings with Fly - Men's
$120.00
81 reviews with an average rating of 4.6 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
Icebreaker200 Oasis Crewe Base Layer Top - Men's
$110.00
46 reviews with an average rating of 4.3 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
Top Rated
IcebreakerMerino 200 ZoneKnit Long-Sleeve Half-Zip Base Layer Top - Men's
$119.73
Save 25%
compared to $160.00
7 reviews with an average rating of 4.7 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
REI OUTLET
Top Rated
IcebreakerMerino 200 Sonebula Long-Sleeve Crewe Base Layer Top - Men's
$89.73
Save 25%
compared to $120.00
7 reviews with an average rating of 4.6 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
REI OUTLET
Sale Ends Mar 23
REI Co-opMerino 185 Base Layer Bottoms - Men's Tall Sizes
$59.89
Save 25%
compared to $79.95
17 reviews with an average rating of 3.9 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Tall, Big
Sale Ends Mar 23
Top Rated
REI Co-opMerino 185 Long-Sleeve Base Layer Top - Men's Tall Sizes
$59.89
Save 25%
compared to $79.95
10 reviews with an average rating of 4.8 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Tall
IcebreakerMerino 200 Oasis Long-Sleeve Crewe Base Layer Top - Men's
$120.00
1 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Big
Ortovox185 Rock'N'Wool Long-Sleeve Base Layer Top - Men's
$120.00 - $130.00
0 reviews
Underwear Weight:
Lightweight
Size Type:
Regular, Big
IcebreakerMerino 260 ZoneKnit Long-Sleeve Half-Zip Base Layer Top - Men's
$185.00
1 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Heavyweight
Size Type:
Regular
Helly HansenLifa Merino Midweight Base Layer Pants - Men's
$69.93
Save 33%
compared to $105.00
1 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Big
Icebreaker300 MerinoFine Polar Long-Sleeve Half-Zip Thermal Base Layer Top - Men's
$250.00
7 reviews with an average rating of 3.9 out of 5 stars
Underwear Weight:
Heavyweight
Size Type:
Regular
Top Rated
IcebreakerMerino 260 Tech Long-Sleeve Half-Zip Thermal Base Layer Top - Men's
$99.73
Save 26%
compared to $135.00
51 reviews with an average rating of 4.5 out of 5 stars
Underwear Weight:
Heavyweight
Size Type:
Regular
REI OUTLET
Icebreaker200 ZoneKnit Long-Sleeve Crewe Base Layer Top - Men's
$150.00
2 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
Icebreaker200 ZoneKnit Merino Thermal Base Layer Leggings - Men's
$109.73
Save 26%
compared to $150.00
7 reviews with an average rating of 4.3 out of 5 stars
Size Type:
Big
REI OUTLET
Hot ChillysClima-Wool Crew Base Layer Top - Men's
$79.73
Save 33%
compared to $120.00
0 reviews
Underwear Weight:
Midweight
Size Type:
Regular
REI OUTLET
Top Rated
Icebreaker125 ZoneKnit Merino Long-Sleeve Crewe Thermal Top - Men's
$93.73
Save 25%
compared to $125.00
7 reviews with an average rating of 4.9 out of 5 stars
Underwear Weight:
Ultralightweight
Size Type:
Regular
REI OUTLET
Arc'teryxRho Merino Wool Base Layer Bottoms - Men's
$120.00
5 reviews with an average rating of 3.8 out of 5 stars
Underwear Weight:
Lightweight
Size Type:
Big
Ortovox230 Competition Long-Sleeve Base Layer Top - Men's
$110.00
2 reviews with an average rating of 3.5 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
IcebreakerMerino 260 ZoneKnit Long-Sleeve Crew Base Layer Top- Men's
$175.00
1 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Heavyweight
Size Type:
Regular
IcebreakerMerino 200 Oasis+ Long-Sleeve Half-Zip Thermal Base Layer Hoodie - Men's
$150.00
1 reviews with an average rating of 1.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular
Top Rated
Icebreaker300 MerinoFine Polar Long-Sleeve Roll-Neck Thermal Base Layer Top - Men's
$220.00
10 reviews with an average rating of 4.9 out of 5 stars
Underwear Weight:
Heavyweight
Size Type:
Regular
Arc'teryxRho Merino Wool Zip-Neck Base Layer Top - Men's
$140.00
12 reviews with an average rating of 4.3 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
IcebreakerMerino 200 ZoneKnit Long-Sleeve Half-Zip Base Layer Top - Men's
$160.00
0 reviews
Underwear Weight:
Midweight
Size Type:
Regular, Big
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
IcebreakerMerino 150 Tech Lite Skiing Yeti Base Layer T-Shirt - Men's
$85.00
0 reviews
Underwear Weight:
Lightweight
Size Type:
Regular
StioBasis PeakWool Midweight Base Layer Tights - Men's
$73.83
Save 50%
compared to $149.00
4 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big
Top Rated
StioBasis PeakWool Midweight Half-Zip Base Layer Top - Men's
$78.83
Save 50%
compared to $159.00
7 reviews with an average rating of 5.0 out of 5 stars
Underwear Weight:
Midweight
Size Type:
Regular, Big

61–89 of 89 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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