Our PhD Run Ultra Light Elite Pattern Micro socks aim to help elevate your running game with our favorite sock technologies. Featuring our 4 Degree elite fit system for a dialed, performance-oriented fit and Indestructawool technology for enhanced durability, our thinnest running sock can be worn perfectly with your favorite low-cut running shoes on the most demanding runs, trails, and paths.

• PhD is Built for Performance in the Highest Degree
• 4 Degree Elite Fit System 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
• Light Elite Cushioning provides maximum impact protection with targeted cushioning on the ball and heel of the foot. Designed specifically for runners.
• Sock Height: Micro
• Virtually Seamless toe for enhanced comfort
• Achilles tab designed to prevent sock from slipping down into footwear
• 57% Merino Wool, 40% Nylon, 3% Elastane
• Machine Wash Warm. Wash Inside Out.
• Made in USA of Imported Yarns