Hike how you like in our responsibly sourced, ZQ-certified Merino wool Hike Light socks. Formerly known as PhD® Outdoor, these hiking socks are packed with all our tried-and-true sock innovations, like our Indestructawool™ technology for enhanced durability, our 4 Degree™ Elite Fit System for a dialed-in, performance-oriented fit, and our Virtually Seamless™ toe for even more comfort. We've extended durability zones and updates mesh areas to help maximize breathability without sacrificing the perfect sock fit. And light cushioning on the entire bottom of the foot to bring more comfort to your favorite low-cut hiking shoes. Storm more summits while taking care of your feet with our Merino wool performance socks.Features Sock Height: Mid Crew Sock Cushion: Light Cushion Indestructawool™ technology with extended durability zones 4 Degree™ elite fit system for a dialed-in, performance-oriented fit Additional body-mapped mesh zones for added breathability Virtually Seamless™ toe for enhanced comfort Comfort welt with 'stay put' fit Height 6.5" Knit in USA of Imported Yarn: 56% Merino Wool, 11% Nylon, 31% Recycled Nylon, 2% Elastane *Specific percentage of recycled nylon will vary as we transition to 100% recycled nylon in future seasons.