Smartwool's Classic Hike Full Cushion Crew socks focus on comfort and durability, so you can go farther on every hike. Responsibly sourced, ZQ-certified Merino wool keeps things soft, while recycled nylon keeps it all sustainable. And full cushioning on the entire sock adds the warmth and protection you need and love. Stay cozy out there with our updated Classic Hike socks. Fit & Design: Elasticized arch brace for secure fit Crew height provides superior coverage on the trails Flat knit toe seam for additional comfort Cushioning on the entire sock for added protection and warmth Technology: 4 Degree(TM) Elite Fit System: for a dialed, performance-oriented fit with flex zone at ankle joint Shred Shield(TM): helps reduce wear from toes Additional Details: Machine wash warm gentle cycle Do not bleach Do not iron Do not dry clean