Don't let the cold stop you from taking one last run: the PhD® Ski medium delivers maximum warmth and breathability when the going gets cold.
Patent-pending Indestructawool™ technology provides ultimate durability to make sure your socks are ready to go, run after run.
Made with our 4 Degree® elite fit system for a sock that doesn't bunch, slip, or bind.
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™ technology features a patent-pending construction method for exceptional durability and comfort
Men's-specific mesh ventilation zones provide additional breathability and moisture management
Medium cushioned shin and foot for impact absorption and warmth