Size: The see through bookbag measures 7x19x23cm. The compartments have ample storage space, so you can place some books or other small items upon your needs. Material: The clear mini backpack is made of PVC, which is waterproof, strong with no harmful chemicals . you don't have to worry about cracking in cold weather. Shoulder strap: The clear school bag features a reinforced adjustable shoulder strap with pads, making you feel soft throughout the day. It is suitable for adults or kids. Easy security check: The transparent rucksack with pockets can help you get through security check quickly, because others can easily see the objects in your bag, saving you a lot of time and effort. Design: The top handle of small waterproof backpack is good for carrying your bag and giving your shoulders a rest. It is designed with zipper for easy access to items.