Happy 100th Day of School Tshirt 100 Day CHILD or TEACHER 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 Childs 100 day shirt Cocomo Tees Teacher 100 day tshirt Lightweight, Classic fit, Double-needle sleeve and bottom hem