fitmyfavo backpack for girls girls rainbow backpacks for elementary school book bags lightweight 15.6" women daypack waterproof laptop backpacks fitmyfavo this girl‘s backpack made of waterproof nylon material, more durable than polyester, two side fabric pockets are perfect for your bottle and other stuff; the main compartment can fit in a 15.6-inch laptop and enough room for your books for school. soft and comfortable shoulder strap for a better carrying experience.