World's Greatest Grandpa Shirt - Legend, Master, Superhero 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 Best Grandpa Ever Shirt, Coolest Grandpa Ever T-Shirt, Greatest Grandfather TShirt, Funny Grandoa Shirt Cool Gift for grandpa, grandfather, father, uncle, papa, lolo, and dad. Lightweight, Classic fit, Double-needle sleeve and bottom hem