Don’t let the cold stop you from taking one last lap: the PhD® Nordic Medium delivers maximum warmth and breathability when the going gets cold. Built with long-distance comfort in mind, we’ve added our patent-pending Indestructawool™ technology for ultimate durability and our 4 Degree™ elite fit system for socks that won’t 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™ 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
Medium Cushion Medium impact absorption for varied conditions