Smartwool Hike Classic Edition Light Cushion Second Cut Ankle Socks Purple Iris Large. They're made out of old hike socks. Yep Smartwool's Hike Classic Edition Light Cushion 2nd Cut Ankle Socks are made with a mix of recycled fibers canister waste and virgin Merino wool for a pair that feels good and does good with every step. Specifications for Smartwool Hike Classic Edition Light Cushion Second Cut Ankle Socks: Manufacturer: Smartwool Gender: Unisex Age Group: Adults Sock Height: Ankle Footwear Type: Socks Activity: Hiking Seasonal/Temperature Use: Winter Fabric/Material: Elastane Fiber Merino Wool Nylon Features of Smartwool Hike Classic Edition Light Cushion Second Cut Ankle Socks Featuring Smartwool's 2nd Cut yarn utilizing a mix of 50percent recycled fibers from a combination of our sock take back program canister waste and 50percent virgin Merino wool to create new socks Virtually Seamless toe technology is a flat knit toe seam designed for additional comfort Package Contents: Smartwool Hike Classic Edition Light Cushion Second Cut Ankle Socks Smartwool SW002690L90100L000: Hike Classic Edition Light Cushion Second Cut Ankle Socks Purple Iris Large