Smartwool Hike Classic Edition Zero Cushion Liner Crew Socks - Unisex\'s The Classic Hike Zero Cushion Liner Crew hearkens back to our original construction but adds in recycled nylon for strength and durability while reducing environmental impact. This liner has an elasticized arch brace so your foot will enjoy a secure fit, and it will give you a flat knit toe seam for additional comfort. When you’re ready for your next hike, be sure to grab a pair of these responsibly sourced Merino wool socks to make the most of each mile on the trail. Features: Sock Height: Crew Our first sock construction, only now featuring recycled nylon (content varies by style) Zero Cushion: The absolute minimum between you and your shoes. Elasticized arch brace for secure fit Flat knit toe seam for additional comfort Knit in USA of Imported Yarn: 59% Merino Wool 8% Nylon 30% Recycled Nylon 2% Elastane 1% Polyester Style: SW001650 Watch this short video to find our more about the Hike Socks Classic Edition: Technical Features: Zero Cushion: The absolute minimum between you and your shoes. Product Care: Machine Wash Warm, Inside Out Do Not Bleach Tumble Dry Low Do Not Iron Do Not Dry Clean