Patriotic State Flag of Washington D.C. T-Shirt 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 Patriotic State Flag of Washington D.C. T-Shirts. Tees available for men,women and kids. Popular American travel shirts available in many sizes and colors. Lightweight, Classic fit, Double-needle sleeve and bottom hem