Pendleton Men's Merino Jacquard Park Crew Socks 89% Merino Wool, 9% Polyester, 2% Spandex Imported Our new wool park socks celebrate 100 years of national parks Exclusive Pendleton jacquard designs combined with National Park Stripes Our designers have added just the right amount of spandex to prevent slippage and ensure a consistent fit throughout the day Deep, welted top helps hold sock in place and reduces pinch lines Fully cushioned sole for comfort and fit Fabric  Luxury fabrics in virgin wool, silk, cotton and more Pattern  Plaids and traditional geometric patterns that are recognizable at a glance Philanthropy  Ongoing support of the American Indian College Fund,the National Park Foundation, FisherHouse, the Native American Rehabilitation Association.