【FUNCTIONAL AND APPEARANCE UPGRADE】- Laptop backpack with new drawstring design can hold towel, sunglasses, keys and other portable items, better meet your daily needs as college backpack, travel backpack, business backpack. The reflective effect attached to the drawstring ensures your safety at night. The water resistant backpack is made of lightweight and durable fabric, and the appearance is changed to color blocking design, which makes the back pack more fashionable and stylish.【Multi-pocket Design Keeps Items in Order】- The storage space of this backpack is mainly divided into three layers.Separate laptop compartment that can accommodate laptops up to 16 inches as well as 15.6 inch,14 inch and 13 inch.Largest spacious compartment can also accommodate books,clothes, mice and other items.The second compartment can place some daily necessities,such as pens, earphones,keys, cards,etc.The passport can be placed in the front pocket for easy removal.【Creative USB Design with Detachable Cable&Inside Power Bank Pocket】- With built in USB charger outside and built in charging cable inside the book bag,You can easily charge your phone without opening up the computer backpack. Inner Detachable Cable is convenient for cleaning the backpack,and Inside Side Pocket prevents the mobile power from moving and saves space. (Power Bank Not included)Comfortable on Your Shoulder and Back with Ergonomic Back Support System --- Comfortable back design with soft padding, gives you maximum back support.Breathable and adjustable ergonomics S-shape padded shoulder straps relieve the stress of shoulder and neck. Even if you pack a lot of things in your backpack, you will not feel a lot of pressure on your shoulders. Very suitable for business travel.Updated Quality Material & Multipurpose ---In addition to the previous lightweight, water resistant,durable features, the NEW fabric is more sturdy and not easy to wrinkle.