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Smartwool Hiking Liner Crew Socks - Ultra Light Wool Performance Sock
Smartwool Hiking Liner Crew Socks - Ultra Light Wool Performance Sock
  • Made in USA
  • 3" high
  • 10" wide
  • WARM INSULATION: Experience durability at its peak with the Smartwool PhD Outdoor Light Crew Socks. These socks are built for performance in the highest degree, making them ready for any adventure on your list.
  • COMFORTABLE FIT: The PhD Outdoor Light Crew Socks feature a 4 Degree Elite Fit System for a dialed, performance-oriented fit with a flex zone at the ankle and a Virtually Seamless toe for enhanced comfort.
  • DURABLE YET BREATHABLE: The PhD Outdoor Light Crew Socks are designed with Indestructawool technology for exceptional durability and comfort. The body-mapped mesh zones featured on these socks offer added breathability for all-day wear.
  • LIGHT CUSHION: The lightly cushioned bottom on the PhD Outdoor Light Crew Socks allows you to wear these performance socks on various trails and road terrains without discomfort. These socks will provide you with padded comfort during any season.
  • CARE INSTRUCTIONS: Comprised of 59% Merino Wool, 39% Nylon, and 2% Elastane, the PhD Outdoor Light Crew Socks should be machine washed inside out in warm water and tumble dried on low. These socks should not be bleached, ironed, or dry cleaned.

Experience durability at its peak with the Smartwool PhD Outdoor Light Crew Socks. These socks are built for performance in the highest degree, making them ready for any adventure on your list.

The Smartwool community is a collection of people who believe that time outside is valuable, restorative, and essential for everyone.

When Smartwool started making socks back in 1994, their founders simply wanted to be able to ski longer without getting cold toes.

That’s when they discovered the benefits of Merino wool as a performance fabric. It was soft (softer than any wool they had every felt), moisture-wicking, thermoregulating (warm when it’s cold, and cool when it’s warm), sustainable, and odor-neutralizing- helping to keep feet dry, comfortable, and warm for longer than the synthetic socks they were wearing at the time. It worked so well, in fact, that Smartwool uses it in almost every single item they make.

Smartwool was the first outdoor company to make performance Merino wool ski socks- revolutionizing the category and forever changing the way outdoor enthusiasts viewed their feet.

Smartwool’s whole brand was built on the desire to be comfortable on outdoor adventures-we wanted to go farther and experience more. And that drive continues to fuel everything Smartwool does. From their Merino wool supply chain to the Smartwool advocacy program to how they design their socks and apparel, Smartwool exists to help you play, love, and laugh in the great outdoors as often as you would like.

  • Is Discontinued By Manufacturer: No
  • Product Dimensions: 6 x 10 x 3 inches
  • Item model number: SW0SW1140011003
  • Date First Available: January 12, 2004
  • ASIN: B000P9GCO4
  • Amazon Best Sellers Rank: #35,477 in Sports & Outdoors (See Top 100 in Sports & Outdoors)
    • #36 in Women's Hiking Socks
    • #52 in Men's Hiking Socks
    • #52 in Women's Outdoor Recreation Socks

    Great sock for everyday wear, even as a dress sock. Fits very thin, but you still eat the great features of smart wool. They wick sweat well and do not develop a stink. I have worn them multiple days during hunting trips, with no loss of elasticity and no enduring stink. Longevity is average, in line with other socks at this price point. Great sock. I own ten pairs and wear a pair everyday.
    This review was updated to three stars when the latest iteration arrived. For some reason smarteool decided to stitch their name into the bottom of the sock, essentially ruining it and making me question the first part of their name. The stitching is thicker than the rest of the sock and hits right kinder the arch, making the sock very uncomfortable. My favorite socks, ruined. I will never buy again.

    I have been using these liners for five years, I walk 5-10 miles on rough terrain every day for work. You MUST also use Smartwool outer socks with them. I have mixed liner and sock brands in the past and developed blisters. I might be cynical but I wouldn't put it past the manufacturers to design the socks INTENTIONALLY to not fit well with other brands. For example; the seem that goes over the top of your toes matches in both the liner and the sock with one brand, but does not match when you mix them, leading to uncomfortable friction. This is true amongst both the Smartwool brand AND the Wigwam brand.

    Another note; the old liners had a little Smartwool guy at the back of the calf, the new version has stitching that spells "Smartwool" along the inside of the foot. This stitching can be felt on one's foot so some may find it less comfortable than the previous version that only has the little emblem on the calf.

    Finally, when buying the liners, get the SMALLER of two sizes. For example, I got both a Large and an XLarge. I use the large liner with the XL sock. When it comes to the outer sock, Large is more comfortable but wears out in one season, the XL lasts two seasons but the extra loose fabric is less comfortable than the Large (I'm a seasonal employee).

    These are heavier liner socks. I use these and Wigwam liner socks during colder weather hikes when wearing hiking BOOTS. I wear the Fox River liner socks during warmer weather hiking when wearing TRAIL RUNNERS (low cut hiking/running shoes). These heavier socks are too warm for me when hiking in warm weather, but they wear well.

    I REALLY wanted these to be the winner, after hearing great things about smartwool liners and after loving their other socks. I really do love smartwool socks, seriously, I think they're comfy and they hold up great with the correct care. However, I can't understand WHY they would embroider the logo on the bottom of the sock! The logo embroidery sticks out like a sore thumb. I can feel it on my foot. Why? Just why. I put these on under my normal smartwool hiking socks and went out on a hike for the afternoon, and i could feel the logo on every step. Like I said I love smartwool socks, they do what they are supposed to and they hold up great when cared for properly. I honestly just can't get over this design flaw in this particular pair of socks. I hate leaving sub-star reviews, so I will contact them to see if there's an alternative I can try. Hopefully they do right and help me out a bit, if so I'll upgrade my review. I really don't want to return socks that I have already worn, I'd rather donate to those in need. Going to email them now, we'll see what the outcome is.

    I learned late in life the value of a sock liner. Prepping for a remote hunt in The Rockies I researched many items I would need. And when it came to footwear I found out about sock liners.

    I tried other brands and styles, but after many miles in both hiking and backpacking boots, I found
    Smartwool Unisex Hiking Liner Crew Socks, to be the best fit for me. They are almost seamless and stay up and in place. no slipping or twisting on my foot. Pulling them up tight and a bit stretched over my foot works best.

    I wear a medium weight Merino Wool sock over them, and with many miles of varied terrain, temperatures, and sometimes not so dry areas, not one blister has arisen.

    Seems odd to wear two pairs of wool socks on an 80+ degree day, but the only downside is damp feet. I can live with that!

    Went camping this weekend and it was in the 30s at night. With these socks and ski socks, my feet were the only body parts that felt so cold it hurt to move. Plus they put the logo on the inseam on your step. I can feel it when I walk. Bad placement. Move up around top of sock. Would not get again for purposes of helping to keep feet warn.

    **EDIT: Bumping down from 5 stars to 3. Tuns out what I got was an old pair, from before they put the ill-advised logo on the bottom of the sock. It really is a great sock...maybe at some point the company will fix the design.

    **Original Review: It appears the company changed the design based on customer feedback (kudos to them). These are very comfortable, ultra-light socks.

    I started wearing these with sock liners underneath and it is a miracle worker. I used to get blisters with my cotton socks. I have just hike the rockies, zion (angels landing, while carrying a 36lbs child in a hiking carrier), grand canyon and weekly local hikes. No blisters. I think its just from the liner whisking the moisture away but they way the liner works with this outer sock is a perfect match. It doesn't get sweatly and wet feeling.

    Bought three pairs and used them on the Camino Way. They were mostly great but the heel seam on just one sock irritated my foot so much I had to remove the inner sock and just use the excellent Smartwool outer sock. Even though it was a tiny raise on the seam when you're walking so far it seems like you've got a twig in there! Other than that, they were great. No blisters at all.

    On sizes, I'm usually a 45 / 11-11.5 shoe size but I found that the size below (L) fitted much better.

    I’m changing my review from four stars to one star. I’ve been buying these socks for 10 years. The first set lasted 10 years (and are still going strong). The new ones however are different. Two pairs got holes within two weeks, and subsequently over the next few months every pair has bitten the dust. The old ones are still hole-less if getting a bit threadbare. The new style are identifiable by the word Smartwool along the sole. The old ones just had the little climbing man logo on the top. Such a shame as they were perfect.

    I love these socks. Not cheap but great in the winter when sometimes I wear wool songs over them or hot summer days on their own.
    They wash well in the machine and don't appear to shrink or wear out too frequently.

    I wore these under some smartwool lightweight walking crew socks (also purchased on Amazon) when doing a 26.2, nine hour marathon walk recently. It was a really hot day, a lot of the tracks were very rough and stony, and we climbed some 2,000 ft. I had sorbothane double strike insoles in my boots. Our feet were fine at the end: not a blister in sight. Smartwool, made from merino wool, is brilliant and the double layer works really well without making the feet too hot: I rolled the top layer down over my boot, leaving the liner at full height: I didn't have any heat rash that I normally get on my lower legs when wearing thicker socks during long walks in these conditions..

    These are the best socks in the world. They are absolutely perfect, warm in the winter, cool in the summer, they are exceptionally comfortable. Since I started wearing smartwool hiker socks I haven't wanted to wear any other sock. They are now the only socks I will ever buy. If a pair of socks can change your life these will. Buy them, be kind to yourself, especially your feet!

    Product received was not labelled as a liner sock and were thicker than expected (I'd describe them as slightly cushioned) however they did the job I bought them for - to wear under thick socks to provide extra thermal layer in Finland/winter. Didn't rub and felt good. Stayed fresh feeling after several days

    Yes very good base layers for winter with wool socks in too
    It’s brilliant

    Wore these under thicker wool socks during a week in Norway. Worked perfectly. And still no holes in them.

    Very happy with the comfort and fit of these smart wool liner socks.

    Excellent merino liner socks. Unfussy design which fit comfortably and do an excellent job.

    I'm prone to blisters, these liner socks are a must have for prevention. My advise, purchase blisters prevention plasters too.

    Extremely comfortable, great thermal performance not too hot or too cold, thin enough to wear with barefoot shoes. I have bought six pairs over the last year (even at this high price) and only one sock has laddered and torn.

    Reasonable Quality, priced OK

    Not the warm bedrock I 2anted

    I have cold feet all the time so have a bit of a sock fetish, anyway under a pair of my usual thick wool sock I found these both comfortable and welcome added warmth