Oklahoma Flag T-Shirt Patriotic Shirt Gift 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 Vintage Grunge Flag of Oklahoma Patriotic T Shirts available for men,women and kids. Popular custom designed travel Oklahoma shirts by Tee Styley. Lightweight, Classic fit, Double-needle sleeve and bottom hem