When it comes to running socks, Smartwool pull out all the stops to keep making improvements to their products.
With brand-new Shred Shield™ technology to help improve wear in the toe box, our PhD® Run Ultra Light Micro socks feature the 4 Degree™ elite fit system and Indestructawool™ technology for a dialed-in fit and improved durability.
ADULT SOCKS (shoe size reference)
|Sizes||US Men||US Women||Euro||UK|
|Small||3 - 5.5||4 - 6.5||34 - 37||2 - 4.5|
|Medium||6 - 8.5||7 - 9.5||38 - 41||5 - 7.5|
|Large||9 - 11.5||10 - 12.5||42 - 45||8 - 10.5|
|X Large||12 - 14.5||n/a||46 - 49||11 - 13.5|
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