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Mens PhD Run Ultra Light Micro Socks - White

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Just when you thought a RUN sock was the best it can be, along come the wizards from Smartwool. This fresh new take on the PhD RUN sock is even more technical, has 4 x the durability of the old one, sports virtual toe-seams and has targeted gender specific ventilation zones.

The elite range of the new RUN socks have targeted micro padding where runners need it the most - the ball and heel of the foot. 200 needle point construction provides high density with minimal weight.

  • Improved 4 Degree Elite Fit System that uses two elastics in construction for greater stretch and recovery. That means these socks are not moving any time soon.
  • Ankle band, Upper and Lower instep band, Arch brace.
  • ReliaWool Technology in high impact areas provides longer lasting protection and comfort.
  • 4 X the durability of any other Smartwool RUN sock
  • Larger mesh ventilation zones specifically designed for male runners
  • 3D heel pocket to isolate the heel and prevent movement
  • Virtual seamless toe. Seriously!
  • Light targeted cushioning


  • 51% New Zealand Merino Wool
  • 46% Nylon
  • 3% Elastane

Made in the USA

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