Vamsum Stylish Usb Backpack Practical Trend Backpack, Both Very Convenient To Incorporate Digital Equipment, But Also To Give You Large Capacity Main Pockets To Put Some Clothes, Some Books, Bottle Or Something Else. Anti-Theft Design: Guard Your Bag Against Theft While You Are Taking A Bus Or Walking On A Public Place. It Keeps Your Items From Begin Stolen Because It Cannot Be Reached Out For The Zipper At The First Sight. The Opening Side Fit Closely Together To The Owner’S Back. Your Stuff Are Not Likely To Be Stolen Due To Well-Hidden Zipper. It Has Integrated Usb Charging Port With Built-In Charging Cable Which Provides Convenient Charging Of Your Electronic Device Anywhere. Features And Specifications: A Main Pocket, A Digital Layer Pocket, A Side Waterproof Pocket, A Back Anti-Theft Pocket, Digital Layer Pocket 15.6 Inch Laptop Compartment 9.7 Inch Ipad Compartment Usb Charging Port Material Polyester Fabric Backpack Type: Stylish Backpack Size: 31X 19 X 48 Cm Weight: 900 Grams . Product description Color:black Backpack is made of High-dessity Polyester Water-resistant and tear-resistant USB Charging Design large capacity main pocket: can put 2-3 days clothes Capacity: a main pocket, a digital layer pocket,a side waterproof pocket, a back anti-theft pocket Digital Layer Pocket: 40cm high, 28cm weight,15.6inch laptop compartment, 9.7 inch l pad T15CM compartment, usb charging port W33CM .