Charcoal Dymaxion World Map T-Shirt Alternative Projection 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 Buckminster Fuller dymaxion world map projection, geodesic design Shirts may shrink some when washing so please check the size chart before ordering Lightweight, Classic fit, Double-needle sleeve and bottom hem