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Smartwool - Trekking Heavy Crew Sock

Smartwool Trekking Heavy Crew Sock

50% Off
$10.98 - $13.17 Original price:$21.95
Changing the size selection, or changing the selected color after selecting a size, may change the associated price

Item #SWL0015




Tech Specs

70% merino, 29% nylon, 1% elastane
Recommended Use:
hiking & camping
Manufacturer Warranty:
2 years

Trekking Heavy Crew Sock

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.

  • Trail-ready socks for exploring wild parts of the world
  • Merino wool blend regulates temperature and manages moisture
  • Naturally odor-resistant to keep fabric fresh after wear
  • Heavyweight construction increases cushioning and warmth

Cozy Socks

  • Fit: True to size
  • Size Bought: L

These socks are cozy as hell. My first pair of the heavy-weight smartwool socks. They're a little too thick for me to wear with both my hiking and casual boots comfortably so I generally wear them around the house with slippers. So definitely a bigger fan of the medium weight sock but these are quality too.

The best, hands down

  • Familiarity: I've put it through the wringer
  • Fit: True to size

I've had my fair share of wooly socks. These are the best. The fit, fabric, and function all exceed most — if not all — other brands I've tried. Smartwool hasn't failed me yet, so I continue to throw money at these socks, neck gaiters and base layers because they're warm, durable and, perhaps most important, comfortable.

Think these are too expensive for socks? Treat (and protect) your feet. They deserve it.

Runs small

  • Fit: Runs small
  • Size Bought: M

Smartwool, please manufacture more sizes. I bought size M, because I wear size 7.5 male, but it is on the small side. I think it will perfectly fit size 7. The sizing guide says it is for 6-8.5. How on earth, will it fit 8.5? Really funny. Otherwise, it feels good.

Great socks

  • Familiarity: I gave it as a gift but have feedback to share

I gave these as a gift and he has raved about how comfy they are and soft. Great gift idea.

Last 4 Eva

    Have several pairs you can't wear these out . They do shrink a little over time but still the best socks I have tried for cold weather .

    Love the sock

      I love this sock for skiing. Keeps me warm and doesn't rub causing blisters. May not be the perfect sock but it works!


      • Familiarity: I've used it several times

      these socks kept my feet warm while hiking in Colombia

      Great Socks that will keep you warm

        Very comfortable socks to wear under your hiking boots. Love the cushioning and warmth.

        Cold Weather Socks

        • Familiarity: I've put it through the wringer

        I use these for hiking in the winter and love them! They are super soft and provide great warmth.

        Great socks

        • Familiarity: I've put it through the wringer

        I have a lot of pairs of Smartwool trekking socks and I keep buying them because I love them. I use them for hiking, cross-country skiing, and just lounging. I have an old, almost worn-out pair that I use for sleeping.

        Great sock

        • Familiarity: I've used it several times

        Great sock for hiking. Keeps the feet warm and makes hiking more enjoyable.

        No more doubling up

        • Familiarity: I've put it through the wringer

        Gave to my mom as a birthday gift. She said she loves them. She can now wear just this single pair instead of doubling up on her other wool ones

        Great Gift

          Bought these as a gift for a family member who loves hiking and being outdoors. They seem like cozy, warm socks but aren't too thick as to make it bulky - it makes me want to get a pair for myself!

          Great Socks

            These are great hiking socks. They’re super heavy duty but not so squishy that they bag up around your ankles.

            Beloved Christmas Gift

            • Familiarity: I gave it as a gift but have feedback to share

            Gave these as a gift to my brother in law and he loved em.

            Had high expectations ...

            • Familiarity: I've used it several times

            These work well alone walking around my ranch house, which has concrete floors and is cold in the winter. I tried them alone with a goretex boot and wasn’t too impressed with moisture control but I think my expectations were set way too high. I don’t think any sock can do it all. I do really like them with smartwool hikeliner crew socks (thin smartwool liners). That seemed to make a huge difference in controlling moisture and feeling dry after long treks in cold weather. I’ll buy another pair, they are definitely worth the money. Love to sleep in them when it’s cold. Keeps my little piggies toasty!


            • Familiarity: I've put it through the wringer

            I love Smartwool, and you can't beat a new pair of them. I wanted the warmest, thickest ones, and I think I found them!


            • Familiarity: I've put it through the wringer

            These socks meet the high quality standard expected from Smartwool. They keep your feet warm and don't start to stink after a long day of use. The small size was a good fit (typical shoe size 7.5 US). Only downside I see is that they become a bit less fluffy as you wear them, kind of matt together which might compromise a bit of insulation. Altogether, great socks though!

            Great socks

            • Familiarity: I've put it through the wringer

            Perfect padding and wicks away sweat. This brand lasts so long too.

            Big Fan

            • Familiarity: I gave it as a gift but have feedback to share

            Getting these for Christmas for my dad again, as he requests them every year. He swears by Smartwool and has a growing collection.


            US MEN 3 - 5.5 6 - 8.5 9 - 11.5 12 - 14.5
            US WOMEN 4 - 6.5 7 - 9.5 10 - 12.5  
            EU 34 - 37 38 - 41 42 - 45 46 - 49
            UK 2 - 4.5 5 - 7.5 8 - 10.5 11 - 13.5
            Calf Circumference

            11 - 14.5in

            (28 - 36.5cm)

            12.5 - 16.5in

            (32 - 41.5cm)

            14.5 - 18in

            (37 - 45.5cm)

            16 - 23in

            (41 - 58cm)

            US 6 - 8.5 9 - 11.5 12 - 2.5 3 - 6
            EU 22 - 25 26 - 28 29 - 32 33 - 36
            UK 5 - 7.5 8 - 10.5 11 - 13.5 1 - 4.5
            Use your shoe size to find your correct sock size.
            *Compression Socks and Calf Sleeves fit the same calf circumference as corresponding sock sizing.