Oglala Sioux Flag Tee Solid colors: 100% Cotton; Heather Grey: 90% Cotton, 10% Polyester; All Other Heathers: 50% Cotton, 50% Polyester Imported Machine wash cold with like colors, dry low heat Oglala Sioux / Lakota flag design on a top quality t-shirt for Native Americans. Native Pride Lightweight, Classic fit, Double-needle sleeve and bottom hem