Personalized Happy 100th Days Of School Toddler Dress. Celebrate the special milestone of 100 days of school with our adorable Happy 100th Days Of School design! This cute and cheerful apparel is perfect for both students and teachers who want to commemorate this significant achievement. With its vibrant colors and eye-catching graphics, our design will surely bring a smile to anyone's face. Your little one will be adorable and comfortable in this 100% combed ringspun cotton 1x1 baby rib dress!