Smartwool Hike Classic Edition Zero Cushion Liner Crew Socks - Men's Natural Small. 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 youre 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. Specifications for Smartwool Hike Classic Edition Zero Cushion Liner Crew Socks - Men's: Manufacturer: Smartwool Gender: Male Age Group: Adults Activity: Everyday Fabric/Material: 59percent Merino Wool 8percent Nylon 30percent Recycled Nylon 2percent Elastane 1percent Polyester Features of Smartwool Hike Classic Edition Zero Cushion Liner Crew Socks - Men's 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 Package Contents: Smartwool Hike Classic Edition Zero Cushion Liner Crew Socks - Men's Smartwool SW001650100S: Hike Classic Edition Zero Cushion Liner Crew Socks - Men's Natural Small