Hike how you like in absolute comfort with Smartwool&';s Women&';s Classic Hike Crew. Full cushioning on the entire sock brings warmth and protection to every trail, while their responsibly sourced, ZQ-certified Merino wool&';s natural performance benefits help take care of your feet as you hike. 25 years later, this sock remains unmatched on the mountain. go far. feel good.(TM) Features Sock Height: Crew Our first sock construction, only now featuring recycled nylon (content varies by style) Elasticized arch brace for secure fit Flat knit toe seam for additional comfort Knit in USA of Imported Yarn: 56% Merino Wool, 11% Nylon, 31% Recycled Nylon, 2% Elastane Style: SW001648