I Love Books T Shirt For Readers, Writers, Librarians 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 I "Heart" Books T-Shirt Perfect For A Gift Or For That Favorite Shirt Lightweight, Classic fit, Double-needle sleeve and bottom hem