Warner Bros Batman The Batman Preschool 14". The preschooler backpack is made of durable water-resistant polyester which is lightweight and easy to clean. The child-size backpack is perfect for toddlers going to preschool or play dates. , , One main pocket,one front pocket, large enough backpack to store your kids lunch boxes,snacks and toys/items, A4 books and other small items,suitable for children of over 3 years old. The adjustable padded shoulder straps offer support and comfort to your child. The backpack features easy to open and close for hassle free usage. Warner Bros Batman The Batman Preschool 14".