Kids World Map T-Shirt. Boys / Girls Map of the World Tee 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 World Map T-Shirt. Perfect to wear at home or out and about. A fantastic Geography & World Map themed T-Shirt. A great map of the world T Shirt design. A perfect gift for a Birthday. Lightweight, Classic fit, Double-needle sleeve and bottom hem