Product details Brand: Patagonia Woven in a family-run factory in the U.S., these itch-free, heavyweight socks are comfortable, durable and warm. They're made with responsibly sourced merino wool blended with nylon and polyurethane for excellent stretch and recovery that lasts the lifetime of the sock. The Heavyweight Wool Knee Socks is fully backed by our Ironclad Guarantee and you can find it on Patagonia.com. Patagonia Eco-stylist.com Patagonia Heavyweight Wool Knee Socks in Viking Blue