Thin Blue Line Shirt - Thin Blue Line T shirts 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 Thin Blue Line T shirt, Thin Blue Line Tee Shirts Thin Blue Line Shirts, Thin Blue Line Tshirt Lightweight, Classic fit, Double-needle sleeve and bottom hem