Personalized Happy 100 Days Of School Toddler Dress. Our 100 Days of School design apparel features a delightful and eye-catching design that showcases the excitement of reaching this special milestone. With vibrant colors and playful graphics, it's a fun way for kids to express their love for learning. Your little one will be adorable and comfortable in this 100% combed ringspun cotton 1x1 baby rib dress!