Roomy main compartment; Zippered mesh pocket provides additional organization for smaller items; Dual purpose slip-through back pocket allows bag to slide over the Outsider® handle of other Baseline bags for easy transport. Magnetic closure secures bag in place; Elastic, hide-away ID card conceals personal info. Interior window allows for quick identification; Features interior pocket for tickets, magazines, pens, keys, etc.; Gusseted side pockets for added organization. One side features an exterior slip pocket & zippered water bottle pocket. The opposite side has a larger slip pocket for magazines; Large U-shaped opening; SpeedThru™ pocket for hassle-free airport security luggage checks. Orange lining alerts when pocket is open; Simple as that® lifetime warranty