MADE OF WATERPROOF OXFORD FABRIC:The travel bag is made of high-density Oxford cloth material, which makes the laptop backpack excellent waterproof and wear-resistant, and has a longer service life. luminous backpack The smooth two-way zipper design makes backpacks more beautiful and makes your use more convenient. USB Charging PortLuminous backpack with a humanized USB charging interface design(NOT INCLUDE THE POWER BANK), it is great to enjoy the convenient charging by connected with the portable charger and your electronic device, easily keep your smart phone full power anytime and anywhere Classic Fashion Stylish Design Robust zippers are very good at preventing slips, waterproof. Multiple pockets of the travel backpack help to organize the belongings inside, keep your bag tidy and clean, simplify your life, side pockets can be used for water bottles and an umbrella. WIDE RANGE OF APPLICATION OCCASIONS:The large-capacity des