Dont let the cold stop you from taking one last run: the SmartWool PhD Ski Medium Sock delivers maximum warmth and breathability when the going gets cold. Indestructawool technology provides ultimate durability to make sure your socks are ready to go, run after run. Made with 4 Degree elite fit system for a sock that doesnt bunch, slip, or bind.

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: 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
Virtually Seamless toe
14 inch overall height