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SmartWool PhD Running Mini Socks - Ultralight, Quarter Crew (For Men)

Item #5681M
$6.99 Save 56% Compare at $15.95
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About SmartWool PhD Running Mini Socks - Ultralight, Quarter Crew (For Men)

2nds. Nothing slows you down, but how about something to keep you going? SmartWool's PhD running mini socks are equipped with performance-oriented merino wool that wicks moisture and breathes.


Specs about SmartWool PhD Running Mini Socks - Ultralight, Quarter Crew (For Men)

  • Ultralight
  • Height: Quarter crew
  • Fabric: 54% merino wool, 42% nylon, 4% elastic or, 53% wool, 42% nylon, 5% elastic or, 59% merino wool, 37% nylon, 4% elastic
  • Care: Machine wash, tumble dry
  • Made in United States of America (yarn imported), Korea, Republic of (yarn imported)
  • Visit our Wool Guide
  • US shipments only


Do you own this product? Write a review and help others with their buying decisions!

4.460000 5 Overall Rating: 4.5 Based on 100 reviews

Most Helpful 5-Star Review

Typical smartwool
Verified Buyer Reviewed by Angela the runner from Michigan on Friday, August 21, 2015
Perfect as usual
Your search for "" returned reviews for SmartWool-PhD-Running-Mini-Socks-Ultralight-Quarter-Crew-For-Men Remove reviews search
  • Lacking quality.
    Reviewed by Spared from Colorado on Thursday, March 2, 2017
    Bought these socks to bridge that gap left by my rising winter tights. They worked well for that. HOWEVER, after about 60 miles both socks had holes in the big toes. I do wear other socks when I run and have not had issues with the others. Disappointed. I did like the fit and warmth. They are thin but not my thinnest running socks.
  • Horrible
    Verified Buyer Reviewed by Dan from Boston, MA on Tuesday, January 31, 2017
    Burned a hole through both of these socks on my third run with them. And, yes, my nails are clipped short. I have $2 socks that I've worn more than 100 times and still don't have holes. Not sure what the issue is with these.
  • Smartwool socks
    Verified Buyer Reviewed by Smitty from Colorado on Friday, January 6, 2017
    Good socks at a great price
  • Normal SmartWool Quality
    Verified Buyer Reviewed by 9986mkoh from OH on Wednesday, January 4, 2017
    If they are 2nds, you really can't even tell. There's nothing different between these and off-the-shelf SmartWool socks.

    These are very thin, as you might expect with an UL sock. I'm very pleased with these, and will never have any new socks other than SmartWool or DarnTough. Quality is comparable, and both fit me well. True to size, although at the upper/lower end of the range you can get away with either size.
  • Poor durability
    Verified Buyer Reviewed by Ben in MT from Montana on Tuesday, January 3, 2017
    Hole in the big toe after three miles in the first pair. thought it might be my toenail (although I hadn't had problems with any other socks), so I cut and filed. Hole in the big toe after three miles in the second pair. There is something wrong with these socks.

Question & Answer

Questions about this product? Get answers from community and staff experts.

  • “My footsize is 11.5 extra wide. I seriously doubt that a large will fit, and know that an extra large will be too big.

    If these socks ran large the large might fit. Is there any chance that they might?

    Made in America products run larger than Chinese, for example American made New Balances in a 11 4x wide fit me well.

    Smart wool has many products that look good to me.

    Asked by Sean from Texas on 5/25/2015 3:28:49 PM
    • My size L socks fit nice and snug for my size 10.5D foot.
      Answered on 5/25/2015 4:06:13 PM by SA from Tennessee
    • They seem to run true to size. I wear 10.5/11 with a narrow foot and the fit is great. They do have a bit of stretch but depending how wide your foot is it may be too snug.
      Answered on 5/26/2015 6:46:34 AM by Andres from MN
    • According to our fit models this item is running true to size.
      Answered on 5/26/2015 9:42:48 AM by Product Specialist Greg from Company Headquarters
    • I love these socks. I think they're worth taking a chance on. My feet are extra wide, and I always order my regular size, and they fit fine. I have also ordered a size larger on occasion when they were out of my size, and they fit as well. I personally don't throw my wool socks in the dryer, but also kept that as an option if I received some that were too large. Also, I do a lot of my son's wash, and he also has these socks and always runs them through the dryer. They look so small to me, but they still fit him just fine. I honestly bet either size would work. There usually isn't much difference in size. I don't like things too tight, so would probably go with the extra large. If you haven't used their return express, it's great. If what you order doesn't work, you can either trade them immediately, so you don't have to wait for the return to be processed, or order two difference sizes and keep the one that works best, and exchange the other ones. I really believe you'll love these socks either way. Good luck! I hope this information is helpful!
      Answered on 5/26/2015 6:05:16 PM by Shoe lover from UT
    • Also, I believe one of their representatives told me once that Smartwool sold their name to China, and now uses Goodhew for their American socks, if that is helpful.
      Answered on 5/26/2015 6:08:26 PM by Shoe lover from UT
  • “Are they seamless across the toe?”
    Asked by Shifra G. from Colorado on 10/19/2014 8:09:19 AM
    • If this were a knitting question, I would have to answer that it does have a seam. From the standpoint of practical functionality, the sock is "seamless." One does not experience the seam at the toes, or anywhere. A "princess" would sense the embroidered letters for SMARTWOOL before sensing the seam. But then, I am but a humble peasant who runs miles and miles, not one who requires a high stack of mattresses...
      Answered on 10/19/2014 10:03:32 AM by Sarabeth Wyatt from Princeton
    • They do have a seam, but it is so well made you cannot feel it, I had to look closely to distinguish between the seam and the embroidered Smartwool logo. They are thin, light, and very comfortable for either running or Insanity workouts.
      Answered on 10/19/2014 10:54:36 AM by Harry from NC
    • No.
      Answered on 10/19/2014 5:34:18 PM by droF from Novi, Michigan
    • NO! The top about at place just before toes meet foot is a sewed seam. No seam on bottom of toes. I have had no problem with the seam and have these on everyday.
      Answered on 10/19/2014 6:05:07 PM by Frederick outdoor man from New England
  • “Does a med size sock fit a women's shoe size 8 when the sock is for both men and women?”
    Asked by lwaterlogged from Washington on 3/30/2014 5:07:24 PM
    • I honestly do not know. I am a male with a size 13 foot and wear the extra-large I hope Ithat helps.
      Answered on 3/30/2014 7:02:26 PM by Redbone from Winston-Salem, NC
    • I would think a M would fit a women's size 8. I have a size 6 1/2 foot and the S is perfect.
      Answered on 3/30/2014 8:14:21 PM by UpNorth Girl from Northern Wisconsin
  • “I wear 9.5 shoe size, what size would I need in this sock?”
    Asked by Love Smart Wool from Washington on 3/11/2014 9:13:17 AM
    • Medium
      Answered on 3/11/2014 9:37:16 AM by Kirk the engineer from Oregon
    • I wear shoe size 9 (euro 43) and Smartwool socks for me are always a Large and feel great.
      Answered on 3/11/2014 8:48:22 PM by Parson from Utah, USA

About SmartWool

Born in the Rocky Mountains of Colorado, the SmartWool clothing brand launched in 1994 as a small company with roots in the snowsport industry. Quickly becoming world-famous for SmartWool socks crafted of super-soft, breathable and odor-resistant merino wool, SmartWool has continued to evolve, now offering a wide range of fantastic apparel for active lifestyles, including SmartWool ski socks, base layers, underwear, sweaters and even jackets. Thanks to a commitment to using only the highest quality fibers and sporty, modern designs, SmartWool socks and clothing continue to exceed the demands of outdoor lovers everywhere.