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Description

Ultra light, micro cuff.

The Smartwool PhD Running Ultra Light Micro Sock is a super-lightweight, micro sock that features a blend of moisture-wicking nylon and non-itchy merino wool for comfort and odor prevention.
  • Blended composition maximizes the benefits of each separate material while minimizing fabric drawbacks
  • Non-itchy merino wool breathes well, helps regulate body temperature, and is naturally odor resistant
  • Nylon components dry quickly, breathe well, and add extra durability
  • 4Degree Elite Fit system employs ankle, instep, and arch elastic bands for better stretch, fit, support, and circulation
  • ReliaWool tech on the bottom of the sock combines high-density impact zones along the ball and heel provides long-lasting protection
  • Virtually seamless toe construction limits irritation and chaffing

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5 3
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SmartWool PhD Running Ultra Light Micro Sock

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Here's what others have to say...

4 5

Dirty white sock

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

I got the "silver" colored sock and don't let the picture fool you. The sock looks like at old, dirty, washed-with-the-dark-load sock. Other than that realize that these are very thin socks, not that that's bad, but I didn't realize it until I put them on. Might be a little thinner than I prefer, and way thinner than I am use to. Not a bad sock though, but that's obvious when it's smart wool.

5 5

Amazing socks

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

One can never have enough socks. Especially socks like these. I just bought 4 pairs for myself for when I work my second job. I work in a restaurant and I am constantly moving around. I wanted something thin that compressed and also moisture wicking. Smartwool is a go-to brand for me whether it be a base layer or a quality pair of socks they always get the job done and you can be sure the quality of the product is excellent because it lasts a long time.

5 5

Awesome

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

A low cut sock that doesn't stretch out! Perfect weight, profile, etc. Smartwool rocks.

5 5

Sock it to me

  • Familiarity: I gave it as a gift, but have feedback to share
  • Fit: True to size

Gifted these to my runner momma for mother's day. She absolutely loves SmartWool socks and wears them every day. Having worn merino wool socks before, I can attest to the effectiveness and superiority over cotton socks. Cotton socks wreck my feet over time, balling up and causing my feet to callous and blister. Not really an issue here. They keep your feet dry(er) and more comfortable. A must have if you're planning on doing anything active but still great feeling on the feet for casual use as well. Contours the foot nicely and provides plenty of ventilation.

4 5

Smartwool Ultra Light Micro Sock

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

Sock it up and pay the price for these! (see what I did there) I like super lightweight socks with no cushion & these hold up to long runs, hikes or even mountain bike rides. The colors get a little crazytown but I'll wear anything that keeps my feet happy. I wear a size 6 women's shoe & the small fit my feet fine.

I would like to take the last 5 seconds of my review to straight up lie to you and say that the red and yellow colors will make you run faster.

Can someone tell me how these compare to...

Posted on

Can someone tell me how these compare to the outdoor ultralight smartwools, as in thickness and cushion?

Best Answer Responded on

It really is the same sock just in an ankle length.

3 5

Barely there feel.

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

I picked up this anklet in a desperate attempt to replace entirely too-worn (i.e., holes) running shoes. I love the color, but found the sock to be a hair too thin my for preference. Through the mesh on my shoes, I could feel the cold morning air on my toes. It took about 3 miles for my feet to warm up. However, I could see someone who likes low-volume running shoes loving this sock.

5 5

makes running fun!

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

too many folks think that running must be an unpleasant experience. "no pain no gain" that's only if you are not running in these socks. they hold your foot well, move moisture so your feet don't get soggy, regulate temperature and just feels good! if you are going to run, the most important thing is your feet right? get these socks and run to your hearts content, your feet will thank you

4 5

Ultra light is right

  • Familiarity: I've used it several times
  • Fit: Runs small

These are probably the thinnest socks that I own. They are really comfortable and great on short runs when its hot. They look like they are breaking down faster than other merino socks that I wear. Sizing was a little on the small side for me. I wear at 11.0 and they are a little more snug than I would like. They slide down a little on runs over about 6 miles. Not sure if this would be fixed by sizing up. Overall they are pretty good.

Responded on

What size did you order?!

3 5

Not bad...

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

These socks are great - read reviews below. But my one complaint is that they don't stay in place for long runs (doesn't have a heel tab so socks ride down into my shoes).

5 5

Phenom!!!

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

These socks are super comfortable and fit fantastic! They are so thin and do a great job wicking the moisture that after 5 miles I couldn't even tell I had them on. I ordered 3 pairs to start and may have to order a few more! Jackpot!!!

5 5

Great sock!

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

I love these socks. If only they were cheaper and I could justify buying all smartwool socks for all occasions. These are really light, but so good for running, biking, gym, etc. They're nice and cool, don't get sweaty, and seem pretty durable, which seemed unlikely based on how thin they are. Good product, will be buying more. Size 8, bought medium, fits perfectly, snug.

5 5

SmartWool PhD RULMS Rock!

Blended composition? Fabric drawbacks? Nylon components? 4Degree Elite Fit system? ReliaWool technology? I've never really thought about the value or my enjoyment of all those features, but I do really like these socks. As with all SmartWool products, I'm surprised I'm willing to pay this much, but I do keep coming back for more!

Pic below, taken at cemetery where I run, shows how much sock is visible above shoe.

SmartWool PhD RULMS Rock!
4 5

Great Running Sock

Smartwool makes a stellar product that does what it claims to. I really like the light feel of these socks and they wick well. However, because they are so light weight, they don't stand up to multiple uses without washing as well as other Smartwools. They wont dry as quickly and they wont stay in place as well.

That being said, for single or two day use, i don't think you can do any better than these.

5 5

So Fresh!

I can hardly express my absolute love for SmartWool socks. I run in minimalist/barefoot shoes and these work perfectly in conjunction with the New Balance Minimuses, not too bulky but keep your feet dry and your shoes from getting too stinky.

Blister free and fresh as can be!

5 5

Awesome socks - totally worth it

  • Gender: Male
  • Familiarity: I've put it through the wringer

I have multiple pairs of SmartWool socks for good reason, whether for hiking, running, mountain biking or just around town. They fit great and should last a long time (based on my other pairs of SmartWools). The socks are quality, and breathe great. My favorite for outdoor athletics.

5 5

Nice Socks

  • Gender: Female

My Smart Wool socks are great and last a long time. Very comfortable and worth the money.

5 5

love them

  • Gender: Female
  • Familiarity: I've used it several times

I love these socks. They are very lightweight and thin. They allow your feet to remain cool even during a workout. They also have support were it is needed the most.

5 5

great socks!

  • Gender: Female
  • Familiarity: I've used it once or twice and have initial impressions

I'm not someone who usually buys running socks, but figured what the heck. I've used these once (for an indoor/treadmill run) and I love them! I was really concerned about the grey color because I tend to get Athlete's Foot when wearing colored socks, but no problems at all! I wish I would have bought more than one pair.

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