Hike how you like in absolute comfort with our Women's Classic Hike Crew. Full cushioning on the entire sock brings warmth and protection to every trail, while our 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. Features 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 56% Merino Wool, 11% Nylon, 31% Recycled Nylon, 2% Elastane Style: SW001648 Care Machine Wash Warm. Wash Inside Out.