Introducing the Mobile Office Computer Backpack - a backpack for the modern office! Constructed of 600D polyester and 600D matte polyester, this bag has many features, including a dual zippered opening to the large main compartment, interior padded laptop compartment (up to 13" devices), interior pockets that can accommodate iPhone Plus and other accessories, an expandable side water bottle pocket, dual zippered exterior compartments and padded top.