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  • SmartWool - Hike Liner Crew Sock - Black
  • SmartWool - Hike Liner Crew Sock - Natural

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  • SmartWool - Hike Liner Crew Sock - Black
  • SmartWool - Hike Liner Crew Sock - Natural

SmartWool Hike Liner Crew Sock


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    57 Reviews


    The Smartwool Hiking Liner Crew is an innie AND an outie.

    The Smartwool Hiking Liner Crew can be worn as an ultra light sock on warm hikes or as a liner in cold weather. The ribbed cuff keeps it from sliding into your hiking boots or bunching at the bottom of your outer-layer sock. A flat-knit toe seam won't bother your toes while breaking trail. Smartwool designed the Hiking Liner Crew Socks to prevent blistering as well as odor—feel free to layer without fear of grossing out your camping buddies.
    • Item #SWL0086

    Tech Specs

    Manufacturer Warranty
    2 years
    Recommended Use
    casual, hiking & camping
    59% merino wool, 39% nylon, 2% elastane

    Tech Specs

    • Reviews
    • Q & A

    What do you think about this product?

    Have questions about this product?

    Love em'!

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

    I had some issues with my double mountaineering boots and blisters. I hardly ever have blisters with new boots, but these for some reason didn't agree with my heels. I bought these and wore them under my normal socks and instantly had no issues with blisters at all!

    I would definitely recommend these to anyone with blister issues!

    SmartWool products are great

    • Familiarity: I've used it once or twice and have initial impressions
    • Fit: True to size

    These were purchased to wear under the Trekking socks for added warmth while skiing in Yellowstone this winter. They are comfortable, and fit well. I own many pairs and styles of SmartWool socks and have never been disappointed.

    Love the sock liners, but caused blister

    • Familiarity: I've used it several times
    • Fit: True to size

    To be fair, I popped tags off these guys on my way to hike up Mt. Olympus in 100 degree heat. I'm not sure what about the sock caused so much rubbing, but I'm nearly sure it wasn't caused by my shoes. I will definitely give them another shot after putting through a cycle in the wash.

    Great under heavier socks.

    • Familiarity: I've used it several times
    • Fit: True to size
    • Size Bought: medium

    Seem good so far. I have tried them on underneath my smartwool heavy trekking socks and they seem to add minimal extra bulk. I don't think they will cause problems getting my boots on. Feel and thickness is comparable to a dress sock.

    Gets the job done

    • Familiarity: I've used it several times
    • Fit: True to size

    Used these liners under my normal hiking socks for summer hikes, and they work well. I had one 12 mile day in them, and they were comfortable and didn't bunch or sag at all throughout the day. I did still get a few hot spots under my big toes, which was something I had hoped these liners would help with, but not a deal breaker or anything a little moleskin can't fix. Fits true to size, I wear a 9 in shoes/hiking boots and ordered a medium.


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

    I got five pairs last spring and since they have been the only every day socks I have used. They can go for days on end withouth having to get washed.

    Downside is that they break. From the ten socks I got, I would say about half of them have big holes now. I will still get new pairs though. That's how awesome they are.

    My favorite liner

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

    No more overheating and blisters! These socks are incredible. They're light and durable and are super breathable. After using them for one hike they became my favorite liner ever.

    happy piggies

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

    I love my wool socks quite a bit. Put these liners on and enjoy no moisture or hot spots. They really are the only accessory for your human personnel carriers

    Blister free; happy as can be :)

    • Familiarity: I've used it several times
    • Fit: True to size

    Good stuff. Definitely do the job to prevent blisters and keep the stanky stank away. Get a couple pairs to keep your feet happy!

    Great All-Around Liners

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

    These liners are great. Comfy, lightweight, durable, dry quickly, and don't pick up foot-stank that quick.

    I use them for hiking, with my slippers, and even just daily wear.

    I'd recommend them even if you don't need liners, but want a lightweight durable sock that's not cotton.

    Good liners but not my favorite

      I tried theses along with some coolmax liners. These are thicker and seem sturdier but I fount that they were a little tougher on my feet. I ended up switching halfway through one of my days because they just weren't as comfy. For the price I had hoped for a bit more but they were not bad. I will use the coolmax liners for long heavy hiking, but keep these for the slightly less intense hikes.

      All I wear

      • Familiarity: I've put it through the wringer

      As the title says I only wear these sock liner's anymore. I use them to go to work, I work on my feet, I use them when I go hiking, and I use them when going snowboarding. Tried to put regular cotton sucks on my feet the other day, and I threw them all away.

      Perfect liners. Double as work socks.

      • Familiarity: I've put it through the wringer

      Since I started using these liners, I stopped getting blisters on my hikes when used properly underneath a heavy wool hiking sock. For this reason alone, they get 5 stars.

      As a bonus, since I got the black ones, I wear them often as professional work socks. They look great and are more comfy, cozy, and warm then traditional work socks.

      Great liner, very durable

        These were more an experiment than anything for me. I almost exclusively wear Smartwool's trekking socks while I'm backpacking. I gave these a shot with some other sock combinations to see if I liked them... and I do. It turns out that I actually prefer to not use liners, but of the four or five types of liners I tried... these were easily my favorite. They are still occasions where I still use them, and when those times come around I always find myself impressed with how comfortable and durable these are.

        If you prefer liners with your boots and socks... give these a shot. You won't be disappointed.

        About what I expected from Smartwool

          All their socks are great. I use these liners for bicycling and hiking. They are a little thicker than my polypro liners, but not so much that they make my shoes and boots too tight. They were especially a good value when Backcountry had them on sale.

          Seams are flatter than most, but not he flattest.

            I bought these socks because my other sock liners went missing in the dryer, and the model has been discontinued. The seams on these are flat but they're not the flattest I've experienced. This makes a difference after 20 miles on the trail with a 50-pound pack.

            Unanswered Question

            Do liners shrink as it's made from wool?
            Generally, warm wash/dry.
            Size 11.5 is on high Lg size but if shrinks, may consider XL.

            What material is this sock made of?

            Is this liner women's, men's, or unisex?...

            Is this liner women's, men's, or unisex?

            So I need to work outside all day and my...

            So I need to work outside all day and my feet freeze! Can I wear these under my regular socks to keep my feet warm and dry? I guess breathable boots are a good idea too?

            These would be a good start for keeping your feet warm.

            The main advantage of a liner sock is that you can take the liner off when your feet start to get sweaty...preventing them from chilling you out later. Maybe even bring another pair of liner socks in a pocket to switch out.

            Best Answer

            And again, wear wool hiking socks, not cotton, as cotton stays wet, ...and then you will really get chilled. This holds true for base layers for winter as well. Go with a hi-tech base layer such as Gore, just for example; or a wool base layer.

            How would these double as dress socks?

            How would these double as dress socks?

            Would these sock liners be good for wearing...

            Would these sock liners be good for wearing under a thicker pair of socks when I'm going skiing? My extremeties really feel the cold when I'm in the snow