Make it an instant repeat with the powerful combination of performance-enhancing Merino and recovery-enhancing compression. Smartwool has stocked these socks with smart features like Indestructawool™ technology for ultimate durability, the 4 Degree® elite fit system, mesh ventilation zones and the signature Virtually Seamless™ toe.
- PhD is 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
- Mesh ventilation zones provide optimum moisture management and maximum breathability
- Virtually Seamless™ toe
- 48% Merino Wool / 44% Nylon / 8% Elastane