REI Co-op  Trailsmith Merino Wool Crew Socks

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Get out there—and then keep going—with the soft comfort of the REI Co-op Trailsmith Merino Wool crew socks. They're naturally odor resistant and moisture wicking.

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Features

  • Made from a blend of merino wool and nylon with a touch of spandex, these socks are durable, breathable and comfortable in any season
  • Machine wash inside out in cold or warm water with no bleach or fabric softener; tumble dry on low; do not iron or dry clean
  • REI Co-op brand is certified to The Climate Label; we actively fund efforts to reduce carbon emissions across our business and support climate projects around the world
  • Made in USA with imported and domestic yarns

Made in USA.

View the REI Co-op Trailsmith Product LineView all REI Co-op Men's Hiking Socks

Technical Specs

Best Use

Hiking

Casual

Fabric

59% merino wool/38% nylon/3% LYCRA spandex

Sock Height

Crew

Sock Cushioning

Light Cushioning

Quick Drying

Yes

Moisture Wicking

Yes

Gender

Unisex

Sustainability

From a Climate Label Certified brand

Size Chart

REI Co-op Socks - Unisex Adult
SMLXLS/ML/XL
U.S. Men's5.5-8.59-1212.5-145.5-8.59-14
U.S. Women's4-6.57-9.510-12.54-9.510-12.5

Sizing Notes

For socks, please use shoe size.

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Better gear is built together

From feedback to field testing, all of our gear is dialed-in by REI Co-op members. Their adventures informed every stitch and detail—making for better, longer-lasting gear.

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List of certifications which include The Climate Label certification,
        member informed certification and 100% satisfaction guarantee

Reviews
72 reviews with an average rating of 4.6 out of 5 stars

84% 26 of 31 reviewers recommended

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Average Overall Fit Rating

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Most Helpful Favorable Review

7 people found this review helpful
5 reviews with an average rating of 5.0 out of 5 stars
1 year ago
Excellent
Excellent socks. Thin enough to wear with any loafer or sneaker. But thick enough to to get your feet warm in boots out on the trail. The wool is soft and comfortable. And the stitching makes them super durable in high wear areas on your foot (heel/toes etc.) Highly recommend.
Andrew Dye
VA

Most Helpful Critical Review

18 people found this review helpful
5 reviews with an average rating of 1.0 out of 5 stars
3 years ago
Ridiculously Tight!
This item takes unnecessary exaggerated compression aspect to a new level (in a very bad way). Socks run small and are extremely tight fit. Compression aspect is not a benefit when taken to this extent. Unwearable.
Greyhound
Kayla
Location:Allentown, PA
Age:25–34
Typical Shoe Size:Womens 8.5
Rated 5.0 out of 5 stars
1 year ago

Exceeded Expectations

Wow! I didn't expect to like these socks as much as I do. They are a nice medium thickness. They feel well-made, and are just stretchy enough to be comfortable, but tight enough to keep their shape. I'm going to order more colors.

Age:25–34
Typical Shoe Size:Womens 8.5

Overall Fit Rating

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Andrew Dye
Location:Virginia
Age:35–44
Typical Shoe Size:Mens 10.5
Rated 5.0 out of 5 stars
1 year ago

Excellent

Excellent socks. Thin enough to wear with any loafer or sneaker. But thick enough to to get your feet warm in boots out on the trail. The wool is soft and comfortable. And the stitching makes them super durable in high wear areas on your foot (heel/toes etc.) Highly recommend.

Age:35–44
Typical Shoe Size:Mens 10.5
Walker65
Age:65–74
Typical Shoe Size:Womens 9.5
Rated 2.0 out of 5 stars
2 years ago

Did not wear well

While these socks are comfortable and have good cushion around the foot, and they look good, the pair I purchased showed signs of wear after only 1 use (a 4-mile walk/hike). The sock rubbed against the inside front of my shoe and is nearly torn through. I will stick with Darn Tough and Smatwool, those socks wear hood and long,

Age:65–74
Typical Shoe Size:Womens 9.5

Overall Fit Rating

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Greyhound
Age:45–54
Typical Shoe Size:Mens 10
Rated 1.0 out of 5 stars
3 years ago

Ridiculously Tight!

This item takes unnecessary exaggerated compression aspect to a new level (in a very bad way). Socks run small and are extremely tight fit. Compression aspect is not a benefit when taken to this extent. Unwearable.

Age:45–54
Typical Shoe Size:Mens 10

Overall Fit Rating

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Dman
Age:45–54
Typical Shoe Size:Mens 13
Rated 1.0 out of 5 stars
2 years ago

Not for hiking

They are a comfortable and warm wool sock but not good for hiking. I wrote them on a short 7 mile hike and the sock rubbing against the back of the shoe pills up and creates hard balls of wool that have me a blister. Only sock that has done this, smartwool socks have not given me any issues.

Age:45–54
Typical Shoe Size:Mens 13

Overall Fit Rating

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Carly
Location:Oregon
Age:18–24
Typical Shoe Size:Womens 8.5
Rated 5.0 out of 5 stars
11 months ago

great socks

I bought these socks for field work with the Forest Service and these were one of my favorite pairs of socks. They’re breathable, thin but comfortable, and have a nice pattern. I didn’t feel the need to take them off immediately as soon as I got home from work.

Age:18–24
Typical Shoe Size:Womens 8.5

Overall Fit Rating

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very satisfied customer
Age:18–24
Typical Shoe Size:Womens 10
Rated 5.0 out of 5 stars
2 years ago

great socks. i got two pairs from the clearance bin over the summer in a color they don't sell anymore - i didn't think i'd like them because i'm a bit of a brand loyalist to smartwool. however, once i started wearing them i could not stop!!! they're incredibly comfortable (i have sensory issues so i hate most socks) and go great with pretty much everything. i'll be buying three more pairs for sure!!

Age:18–24
Typical Shoe Size:Womens 10

Overall Fit Rating

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LAinWC
Location:San Francisco Bay Area
Typical Shoe Size:Mens 9
Rated 5.0 out of 5 stars
2 years ago

Comfortable socks

These Trailsmith socks fit snugly and are comfortable and fairly soft. They are a nice thickness with medium padding (not like a thick bootsock and not like a thin Coolmax sock). The pattern is OK although surely some people would love the design while some others would disdain it-- to each his own. I would buy again if offered at a low price.

Typical Shoe Size:Mens 9

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Alicia T
Location:Berkeley CA
Age:55–64
Typical Shoe Size:Womens 7.5
Rated 5.0 out of 5 stars
2 years ago

Warm and comfy

These are the perfect Winter boot socks. Wether walking in snow, on freezing streets or in the mud, these socks keep my toes warm and stay up on my calves. Highly recommend!

Age:55–64
Typical Shoe Size:Womens 7.5

Overall Fit Rating

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DJH
Location:Spokane, WA
Age:65–74
Typical Shoe Size:Womens 8
Rated 5.0 out of 5 stars
1 year ago

Fit well

Fit well, are warm and comfortable.

Age:65–74
Typical Shoe Size:Womens 8

Overall Fit Rating

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1 - 10 of 72 Reviews

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