It’s time to take “burr” out of your running vocabulary. Stride out in our PhD® Run Cold Weather Mid Crew. A Merino blend and mesh zones designed for runners help keep your feet warm during long winter runs. With a run-specific profile and our 4 Degree™ elite fit system, with two elastics for greater stretch and fast recovery, these socks stay in place at every turn and up every hill.
Built for Performance in the Highest Degree
For a dialed, performance-oriented fit with flex zone at ankle joint
Indestructawool™ technology features a patent-pending construction method for exceptional durability and comfort
Mesh ventilation zones provide optimum moisture management and maximum breathability
Maximum impact protection with targeted cushioning on the ball and heel of the foot. Designed specifically for runners.