World's Greatest Ex-Husband T-Shirt. Funny Divorce Humor 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's Greatest Ex-Husband T-Shirt. Men's Funny Divorce Humor Tee Show the lighter side of divorce, love yourself or give the gift of self love to your awesome divorced friend: World's Greatest Ex-Husband T-Shirt! Lightweight, Classic fit, Double-needle sleeve and bottom hem