Happy 100th Day Of School Teacher Youth Kids Happy 100 Days Happy 100 day of school cool 100 days of school costume for kindergarten, preschool, middle school, elementary school, first grade students teachers, men, women, kids, boys, girls, mom, dad. Happy 100th Day of School Shirt makes a fun gift for students and teachers to celebrate 100 days of school. Celebrate being 100 days smarter in this cute 100th day shirt 8.5 oz, Classic fit, Twill-taped neck