Keep Calm Principal Voice Teacher Appreciation Gift T-Shirt 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 Fun, funny t-shirt gift for the awesome school principal on teacher appreciation day or weekk. "Keep Calm or I will use my Principal Voice" t-shirt for men or women Lightweight, Classic fit, Double-needle sleeve and bottom hem