Removable waist bag. It fastens with a zipper and allows you to carry only the most necessary things when you do not need to take a full backpack with you. Expandable design 18-22 l. Designed for maximum flexibility and comfort. Durable backpack frame. The frame made of durable foam always retains its elegant shape and protects the laptop. 6 multifunctional pockets. The main compartment. Laptop compartment. Front pockets. Back pocket with anti-theft protection. A zippered bottle pocket. Padded shoulder straps. Wide shoulder straps with additional padding to reduce pressure. A secure 15.6-inch laptop pocket. Soft plush pocket to protect your laptop from scratches. Customizable zippers. The set includes 6 pieces of blue and orange colors. USB charging port. Charge your smartphone using the internal Powerbank. **Power bank is not included in the package. It fastens with a zipper and allows you to carry only the most necessary things so as not to carry a full backpack.