Do what feels natural in SmartWool&';s new Hike Light Crew. Formerly known as PhDA(R) Outdoor, they&';ve added enhanced features to their responsibly sourced, ZQ-certified Merino wool socks to help you stay comfortable, breathable, and able to hike any way you like. Improved durability and mesh zones work together with Smartwools&'; top sock technologies to bring you a wool hiking sock capable of climbing it all. Light cushioning along the entire bottom of the sock brings more comfort to your favorite hiking shoe or boot. A crew height helps add extra coverage on the trails and recycled nylon makes this sock more sustainable than ever before. Gear up to go far with Smartwool. Benefits 4 Degree(TM) Elite Fit System For a dialed, performance-oriented fit with flex zone at ankle joint Indestructawool(TM) technology features a patent-pending construction method for exceptional durability and comfort Light Cushion: Cushioning on the entire bottom of the foot. Made In The USA Virtually Seamless(TM) Toe: Smoothed out toe seams for ultimate in-shoe fit and comfort Features Sock Height: Crew Indestructawool(TM) technology with extended durability zones 4 Degree(TM) elite fit system for a dialed-in, performance-oriented fit Additional body-mapped mesh zones for added breathability Virtually Seamless(TM) toe for enhanced comfort Comfort welt with &';stay put&'; fit Height: 8" Knit in USA of Imported Yarn: 56% Merino Wool, 11% Nylon, 31% Recycled Nylon, 2% Elastane Style: SW001615 Care: Machine Wash Warm Gentle Cycle. Do Not Bleach Do Not Iron Do Not Dry Clean