Our Hike Full Cushion Crew socks, formerly PhD® Outdoor, use cushioning on the entire sock to help maximize warmth and protection. These responsibly sourced, ZQ-certified Merino wool hike socks are built with our top sock tech, including Indestructawool™ technology for enhanced durability, our 4 Degree™ Elite Fit System for a dialed-in, performance-oriented fit, and our Virtually Seamless™ toe for maximum in-shoe/boot comfort. We've updated our hike line by improving mesh zones for additional breathability, as well as creating a new ply structure that reduces pilling while enhancing hand-feel and comfort. Not to mention, our best-feeling, best-fitting hiking socks are now made with recycled nylon—making these socks more sustainable than ever. Now that's something you can feel good in and about. Benefits4 Degree™ Elite Fit SystemFor a dialed, performance-oriented fit with flex zone at ankle jointFull CushionCushioning on the entire sock for added protection and warmth.Indestructawool™ technology features a patent-pending construction method for exceptional durability and comfortMade in the USAVirtually Seamless™ ToeSmoothed out toe seams for ultimate in-shoe fit and comfortFeaturesSock Height: Crew4 Degree™ elite fit system for a dialed-in, performance-oriented fitAdditional body-mapped mesh zones for added breathabilityVirtually Seamless™ toe for enhanced comfortIndestructawool™ technology with extended durability zonesComfort welt with 'stay put' fitHeight 8"Made in USA of Imported Yarn: 56% Merino Wool, 11% Nylon, 31% Recycled Nylon, 2% Elastane CareMachine Wash Warm Gentle Cycle.Do Not BleachDo Not IronDo Not Dry Clean   SW001618 Smartwool Men's Full Cushioned Hike Crew Socks