Thin Blue Line 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 Sold and shipped by Amazon SALE ON NOW! Police Officer, Cop, LEO, Law Enforcement Support Shirt. Blue Lives Matter Lightweight, Classic fit, Double-needle sleeve and bottom hem