SmartWool Trekking Heavy Crew Sock

1 review
5-star:   0
4-star:   1
3-star:   0
2-star:   0
1-star:   0



A thick boot filling sock makes for a comfortable…

Rating: rated 4 of 5 stars
Source: bought it new
Price Paid: $18.99


A thick boot filling sock makes for a comfortable fit inside any boot that can accommodate their bulk. Even wet provides a great cushiony feel.


  • Comfortable
  • Durable
  • Retains bulk when wet
  • Warm sleep sock


  • Price
  • Some pilling
  • Some loss of shape
  • Slow drying

The Trekking Heavy Crew Socks were purchased in hopes they would fill the extra room in the toe box of my Keen Erickson PCTs and they worked out great. I had owned other Smartwool socks before, but none so thick as this.

These are very thick socks, labeled as 78% wool, 21% nylon, 1% Elastine. The XL are sized for 12-14.5 US Men's which appears valid as they are a bit loose on my usual size 12 feet. Rather bulky they are probably better suited to boots than a trail running shoe.

These socks have been put through their paces for an entire year of four season use and numerous washings.  There has been some loss of shape and some pilling in the foot area. There have been no holes, snags or other wear issues in either pair I have used over this time period.

I spent a lot of time in wet boots last year and give these socks a lot of credit for my feet not suffering more.  I was quite impressed with how they retained their foot protecting bulk even with a boot full of water. They do not dry very quickly on trail but since they performed so well wet I didn't mind putting them back on for another day if I expected it to be wet again.

In dry conditions they were a bit on the warm side, but being so thick they seemed to still keep my feet from feeling wet with sweat. When boots were removed the sock would feel lightly moist to the touch but never sweat soaked. That warmth also makes them great sleep socks in cooler weather and I use them as my top sock for Winter sleeping under my three season quilt with good result.

All in all I would say these are excellent socks but very application specific. Their bulk is a feature I was looking for and I was pleased to find the Smartwool Trekking Heavy Crew Socks performed well in that regard.  After hundreds of miles of use in challenging conditions they are still fully functional.

They are showing some wear as seen in the pictures below. Some of that I attribute to the conditions I use them in and some may be due to improper washing since I won't let my wife do my trail laundry.

I feel I have gotten value for my dollars as far as these socks go. Smartwool socks are not cheap, but they are functional.  I will continue to keep some of these Trekking socks as well as other styles in my quiver.


Some loss of shape in foot area but upper portion remains solid.


Close up of pilling which is especially visible in the shadow.


Thanks for the good review, LS. There's been so many sparse reviews lately, it's good to read a quality one!

5 months ago
second gear

Hear hear to SmartWool!

5 months ago

Where to Buy

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Manufacturer's Description

Visit SmartWool's Trekking Heavy Crew Sock page.

Retailers' Descriptions

Here's what other sites are saying:

Heavy full-cushioning provides shock absorption, offers insulation against the elements, and supports under weighty loads. Arch brace holds the sock in place and adds additional support. Flat-knit toe seam keeps you comfortable.

- Ramsey Outdoor

The SmartWool Trekking Heavy Crew Crew is a sock born for long trips. The heavy, full cushion provides shock absorption and support under heavy loads as well as insulation from the cold. An arch brace holds the sock in place and adds additional support where you need it. WOW Technology(TM) in reinforced sole for maximum comfort and durability 3x1 ribbed cuff Flat knit toe seam Elasticized arch brace Sizing: Medium: Men's 6.5-8.5 Women's 7-9.5 Large: Men's 9-11.5 Women's 10-12.5 X-Large: Men's 12+

- OMCgear

SmartWool uses their long lasting blend of wool and nylon to make their Trekking Heavy Crew Sock as adventurous as you are. The sights and sounds of an exotic land should not be overshadowed by the smell of your socks. Arch support and padding aid in keeping foot muscles relaxed and protected during long trips. Wool has the ability to keep your feet warm and dry while the outside temperature goes from chilly to steamy. Foot funk and odors are naturally repelled for day after day on the trail. Wash these wooly socks in a stream and they'll be dry before you know it.


On Sale. Smartwool Trekking Heavy Crew Sock FEATURES of the Smartwool Trekking Heavy Crew Sock Wow technology in reinforced sole for maximum comfort and durability 3x1 ribbed cuff Sizing clearly indicated on the sock Flat knit toe seam Elasticized arch brace SPECIFICATIONS of the Smartwool Trekking Heavy Crew Sock 77% Merino Wool, 22% Nylon, 1% Elastane Height: Crew Cushioning: Heavy Full Cushion

- Moosejaw