Free Ground Shipping on all orders over $75*
PhD® Outdoor Heavy Over-the-Calf Socks
Hover To Zoom

PhD® Outdoor Heavy Over-the-Calf Socks


- Black


Please select a size
Please enter valid quantity

notify me when available

Please enter your email so we can alert you when the PhD® Outdoor Heavy Over-the-Calf Socks in is back in stock. We promise not to spam you. You will only be notified once.

Size Chart


When ultimate warmth and comfort are what you need, pull on the PhD® Heavy OTC. We've updated this classic style with Indestructawool™ technology for ultimate durability and the 4 Degree® elite fit system to keep the sock in place. Heavy cushioning provides warmth for even the coldest days.



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
  • 14" overall height
  • Sock Height: Over the Calf
  • Made in USA of Imported Yarn: 74% Merino Wool, 24% Nylon, 2% Elastane
  • Style: SW015047


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