Keep Calm & Save The Zombies #2 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 KEEP CALM & SAVE THE ZOMBIES front 33 of your favorite zombie authors listed on back Lightweight, Classic fit, Double-needle sleeve and bottom hem