We worked with athlete Rob Krar to create the ultimate ultra-run sock. This purpose-built sock features Shred Shield™ technology to reduce wear from toes, activity-specific minimal and targeted sole cushioning, and a new malleolus ankle cushion designed for protection on the most rugged trails. These socks were built to go as far as you want to go, with unwavering comfort and performance.

• PhD® 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™ 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
• Ultra Light Cushion Minimal cushioning for maximum next-to-foot performance without added bulk
• Shred Shield Shred Shield helps reduce wear from toes
• Sock Height: Crew
• Rob Krar signature sock
• Minimal and targeted sole cushion; Achilles heel cushion
• Malleolus ankle cushion for protection on the most rugged trails
• Virtually Seamless™ toe for enhanced comfort
• 360° print technology
• Made in USA of Imported Yarns: 57% Merino Wool, 38% Nylon, 4% Elastane, 1% Polyester
• Style: SW001163
• Machine Wash Warm, Wash Inside Out.
• Do Not Bleach.
• Tumble Dry Low.
• Do Not Iron.
• Do Not Dry Clean.
• Color: Bright Blue

SW001163-378