Idaho Flag 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 Vintage Grunge Flag of Idaho Travel T Shirts available for men,women and kids. Popular custom designed patriotic Idaho shirts gifts. Lightweight, Classic fit, Double-needle sleeve and bottom hem