Zipper closure Thicker durable PVC: The clear backpack is made of smell-less thicker PVC material; much more durable for everyday use than most backpacks on the market; It is both durable and soft that you can bend it as you need; and it would not crack even in cold weather Reinforced strap stitches: Reinforced cross stitches are adopted to fix the strap firmly; The shoulder straps are specially designed wider than usual to ease the stress on your shoulder; Each strap is sewn on securely and padded for comfort Multi-functional compartments & large capacity: Size: 17 x 12 x 7.5 inches (H x L x W); 1 large main double zipper compartment for binders; laptops; books; etc., with 1 small single zipper inside mesh pocket for phone; cash; cards; etc.; 1 front single zipper compartment for notepads; glasses; etc.; with 1 big and 3 small open mesh slots for pens; tissues; keys; etc.; 2 side mesh pouches for water bottles or folding umbrellas; The clear backpack affords decent room for different purposes Apply in various occasions: The backpack perfectly transparent meets the requirement of colleges; workplace; It's also convenient for you to check everything you need is ready and easy access Appropriate occasions: clear backpack is your perfect choice for colleges and workplaces where require security checks; It is also convenient for you to check everything you need to be ready