Smartwool Hike Classic Edition Light Cushion Crew Socks Light Gray Extra Large. The Classic Hike remains mostly unchanged and certainly unmatched in comfort. But today it's getting upgraded. And that upgrade starts with recycled nylon - creating a more sustainable (but just as comfortable) sock. They're also made with responsibly sourced ZQ-certified wool that was grown with a focus on ensuring environmental social and economic sustainability while also taking the best care of our Merino sheep. This is a cozy capable classic that is never going out of style. Specifications for Smartwool Hike Classic Edition Light Cushion Crew Socks: Manufacturer: Smartwool Gender: Unisex Age Group: Adults Sock Height: Crew Color: Light Gray Footwear Type: Socks Activity: Casual Training Fabric/Material: 56percent Merino Wool/11percent Nylon/31percent Recycled Nylon/2percent Elastane Last Chance: Yes Features of Smartwool Hike Classic Edition Light Cushion Crew Socks 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 Light Cushion Crew Socks Smartwool SW0129000391-XL: Hike Classic Edition Light Cushion Crew Socks Light Gray Extra Large