Waterproof Laptop Backpack, Computer Backpack, Notebook Laptop Bag manufacturer / supplier in China, offering Theftproof Anti-Theft Waterproof Double Shoulder Business Travel Laptop Notebook Computer Backpack Bag with USB (CY9801), Anti-Theif Outdoor Double Shoulder Leisure Business Travel Laptop Computer Notebook Tablet PC Bag Pack Backpack with USB (CY8968), Green Double Shoulder Computer Laptop Notebook Business Travel Leisure Bag Pack Backpack (CY1874) and so on.