Smartwool PhD Cycle UL Mini Socks

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10 mi. short of a century, the last things you should be thinking about are your sore feet. The Smartwool PhD Cycle UL Mini socks will have you thinking about how comfortable your feet are instead.


  • Merino wool wicks moisture and regulates body temperature
  • Indestructawool™ strategically places merino wool and proprietary yarn reinforcements, creating some of the most durable and comfortable socks ever made
  • Virtually Seamless toes protect against abrasion
  • 4 Degree elite fit system uses 2 elastics for stretch and recovery to keep the socks in place
  • Mesh ventilation zones provide optimum temperature regulation and moisture management
  • 200-needle construction provides high knit density while maintaining ultralight weight
  • 3.75 in. overall height

Made in USA.

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

Technical Specs

Best Use



52% nylon/43% merino wool/5% elastane

Sock Height


Sock Cushioning

No 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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