Feature: * Large Capacity & USB Charging Port: 2 Large compartments give excellent protection for 2 laptop computers and tablet.Largest main compartment hold for 2-3 days travel clothing.Many hidden pockets can accommodate lots of travel accessories,notebook, personal toiletries,side Zipper pocket for Easy access essentials, external USB port with set-in charging cable offer convenient charging your cellphone and other electronic devices.A hole for headphone outside gives easy access to Earphone usage. * Rfid Anti-Theft: The big backpack perfect for indoor/outdoor activities,Served as durable college school backpack. RFID Pocket with RFID-radio frequency identification help secure personal data encoded on you credit cards,IDs and passports * Ventilation methods &Smart Chest Strap: Back U-shaped ventilation design help for the air convection. Adjustable shoulder straps with padding help relieve the stress from your shoulder.;The Adjustable chest strap bring the shoulder straps in tighter to the chest. * Durable Material & Solid: Heavy duty  HUNTER backpacks made from high quality polyester oxford fabric, with heavy-duty  zippers(zipper slider +zipper puller to make it difference from others ). for a secure and long-lasting usage everyday/weekend. *The printings on the backpack is specially designed ,we open the printing mould ,checking colours ,to make sure it's vivid ,to make a difference  your bags comparing to others ,you are precious and different! *Welcome to asking for our products list ,will show our experience and our profession on bag area with 24 years developments