Smartwool PhD Run Light Elite Micro Socks - Men's

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These men's socks pack years of testing, prototypes and running smarts into an advanced, great-fitting design. Cushioning in the ball and heel adds shock absorption with minimal in-shoe volume.


  • 4 Degree elite fit system uses 2 elastics for greater stretch and recovery
  • Patent-pending ReliaWool technology in high-impact areas provides long-lasting protection to keep feet comfortable
  • Mesh ventilation zones designed specifically for male runners provide optimum temperature regulation and moisture management
  • Virtually seamless toes
  • Achilles tabs
  • 200-needle construction provides high-density cushioning while maintaining light weight
  • 1.75-in. overall height

Made in USA.

View the Smartwool PhD Product LineView all Smartwool Men's Running Socks

Technical Specs

Best Use



51% merino wool/46% nylon/3% elastane

Sock Height


Sock Cushioning

Light Cushioning

Moisture Wicking




Size Chart

U.S. Men's3 - 5.56 - 8.59 - 11.512 - 14.5
EU34 - 3738 - 4142 - 4546 - 49

Sizing Notes

For socks, please use shoe size.

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