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Men's PhD® Outdoor Heavy Crew Socks
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Men's PhD® Outdoor Heavy Crew Socks


- Deep Navy


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Venture further and stay warmer with the PhD® Outdoor Heavy Crew. Heavy cushioning and the power of Merino help keep your feet warm, dry and comfortable whether you're out on a multi-day trek or trudging through the snow. Featuring Indestructawool™ technology for ultimate durability in high wear areas, the 4 Degree® elite fit system for a dialed fit and our signature Virtually Seamless™ toe for extraordinary comfort in any trail shoe.



Built for Performance in the Highest Degree

4 Degree™ Elite Fit System
4 Degree™ Elite Fit System

Uses two elastics for greater stretch and recovery to keep the sock in place


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

Mesh Venting
Mesh Venting

Mesh ventilation zones provide optimum moisture management and maximum breathability

Heavy Cushion
Heavy Cushion

Heavy cushioning offering significant impact absorption for extended backcountry excursions


  • Virtually Seamless™ toe
  • 8.5" overall height
  • Sock Height: Crew
  • Made in USA of Imported Yarn: 73% Merino Wool, 25% Nylon, 2% Elastane
  • Style: SW001073


  • Machine Wash Warm Gentle Cycle.
  • Do Not Bleach.
  • Tumble Dry Low.
  • Do Not Iron.
  • Do Not Dry Clean.