Description: Meet your new favorite running companion, our PhD® Run Ultra Light Pattern Crew socks. Simple in look, but not in design, these technical running socks are built with our Indestructawool™ technology for enhanced durability, our 4 Degree™ elite fit system for a performance-oriented fit, and our Shred Shield™ technology to ensure your toenails don't tear up such a great sock. Don't leave home without 'em. Benefits 4 Degree™ Elite Fit System: For a dialed, performance-oriented fit with flex zone at ankle joint Body Mapped Mesh Venting For Men: Gender-specific mesh in key areas to increase breathability and comfort Indestructawool™: technology features a patent-pending construction method for exceptional durability and comfort Made in the USA Shred Shield™:helps reduce wear from toes Ultra Light Cushion: The absolute minimum between you and your shoes. Features Sock Height: Crew Indestructawool™ technology for enhanced durability 4 Degree™ elite fit system for a dialed-in, performance-oriented fit Shred Shield™ technology reduces wear from toes Body-mapped mesh zones for added breathability Virtually Seamless™ toe for enhanced comfort Made in the USA of Imported Yarn: 49% Merino Wool 47% Nylon 4% Elastane 7.5" overall height