If sky blue isn't the color for you, you may prefer a darker shade of blue. That's why we offer a navy blue clear school bag. This see through book bag is very sturdy since it is made out of high quality polyester and plastic. To ensure that your stuff always stays dry, this clear backpack comes with a rain flap which protects all of your belongings in the main compartment. The shoulder straps are 29 inches long and adjustable. Clear school bags are also very comfortable since they are padded all over! The entire back panel is padded as well as the straps. If you want to show off a new you, the best way to start your transformation is with clear backpacks.