Super-Slim & Expandable: One separate laptop compartment hold 15.6 Inch Laptop as well as 15 Inch,14 Inch and 13 Inch Macbook/Laptop, another one expandable compartment can convert between slim and expanding for international airplane travel and day trip or business trip.

Perfect Protection: The robust outer material of water-resistant polyester is durable and dirt-repellent and spills, Serve you well as professional office work laptop case, slim USB charging bagpack,college high school big student backpack for boys, girls, teens, adults.

USB Port Design: With built in USB charger outside and built in charging cable inside,this usb backpack offers you a more convenient way to charge your phone while walking. Please noted that this backpack doesn't power itself, usb charging port only offers an easy access to charge.

Five Pockets: Two front pockets for laptop accessories & Pad, the middle part is two pockets, one of them is expandable 150% bag when short journey and other one for keep laptop, the back pocket for some books of A4 size or hide the shoulder straps.

Best Service: Please contact us If for any reason you are not satisfied with our product you will receive a full refund no questions asked and hassle free.