Perfect Unicorn Backpack - The SchoolHouse backpack for girls is tailor-made for girls ages 3-7 in preschool, kindergarten, and elementary school. These Lightweight backpacks are crafted from durable, waterproof nylon fabric that is eco-friendly and easy to clean. The backpacks come with smooth SBS zippers, soft anti-wrinkle polyester interiors, and are the perfect companion for unicorn lovers.