It's on the Syllabus shirt, Funny Teacher Professor Gift 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 It's always been on the syllabus - no excuses! A great teacher appreciation gift, or for a new teacher! Lightweight, Classic fit, Double-needle sleeve and bottom hem