PhD: Built for Performance in the Highest Degree

4 Degree Elite Fit System: Uses two elastics for greater stretch and recovery to keep the sock in place

Indestructawool: Indestructawool tec...

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PhD: Built for Performance in the Highest Degree

4 Degree Elite Fit System: Uses two elastics for greater stretch and recovery to keep the sock in place

Indestructawool: Indestructawool technology features a patent-pending construction method for exceptional durability and comfort

Mesh Venting: Mesh ventilation zones provide optimum moisture management and maximum breathability

Light Cushion: The ideal cushion for varied trail and road terrain

A favorite of through-hikers and day-trippers alike, the PhD Outdoor Light packs some serious trail power. Featuring a versatile, multi-sport design, this lightweight style includes Indestructawool technology for ultimate durability in high wear areas. And when it comes to comfort, we pulled out all the stops: the 4 Degree elite fit system provides a dialed fit and our signature Virtually Seamless toe offers extraordinary comfort in any trail shoe. The Mid Crew height sits at an ideal height for a low trail boot.

Care Instructions: Machine Wash Warm Gentle Cycle. Do Not Bleach. Tumble Dry Low. Do Not Iron. Do Not Dry Clean.

  • Virtually Seamless toe
  • 6" overall height
  • Sock Height: Mid Crew
  • Knit in USA of Imported Yarn
  • Style: SW001067
  • Virtually Seamless toe
  • 6" overall height
  • Sock Height: Mid Crew
  • Knit in USA of Imported Yarn
  • Style: SW001067

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