Kids I Cant Keep Calm Im Turning Eight - 8th Birthday 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 I Can't Keep Calm I'm Turning Eight T Shirt, 8th Birthday shirts Lightweight, Classic fit, Double-needle sleeve and bottom hem