When it comes to running socks, we pull out all the stops to keep making improvements on our products. With brand-new Shred Shield™ technology to help improve wear in the toe box, our PhD® Run Ultra Light Micro socks feature the 4 Degree™ elite fit system and our Indestructawool™ technology for a dialed-in fit and improved durability.
Benefits
PhD®
PhD®
Built for Performance in the Highest Degree

4 Degree™ Elite Fit System
4 Degree™ Elite Fit System
For a dialed, performance-oriented fit with flex zone at ankle joint

Indestructawool™
Indestructawool™
Indestructawool™ technology features a patent-pending construction method for exceptional durability and comfort

Mesh Venting
Mesh Venting
Mesh ventilation zones provide optimum moisture management and maximum breathability

Ultra Light Cushion
Ultra Light Cushion
Non-cushioned for maximum performance in close-fitting shoes

Shred Shield
Shred Shield
Shred Shield helps reduce wear from toes

Features
Sock Height: Micro
Virtually Seamless™ toe for enhanced comfort
Achilles tab designed to prevent sock from slipping down into footwear
Made in USA of Imported Yarns: 45% Merino Wool, 50% Nylon, 5% Elastane
Style: SW001405
Care
Machine Wash Warm, Wash Inside Out. Do Not Bleach. Tumble Dry Low. Do Not Iron. Do Not Dry Clean.