Lotta Shirts: Montana State Retro Vintage Tourist 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 Bold, Bright, Eyecatching Color Design Conversation Starter For Montana Lovers Lightweight, Classic fit, Double-needle sleeve and bottom hem