4 in 1 design! The versatility of this bag provides multiple carrying options . Use it as a portfolio, a messenger bag, backpack, or a sling bag. Large main compartment . Zippered, padded computer compartment (fits up to a 17" laptop) opens flat to expedite airport security check-in includes a tablet pocket (fits up to a 10” tablet). Padded computer compartment features mesh pockets for storing accessories and an adjustable hook and loop fastener cord management solution. Front zippered pocket with multi-function organizer, storage pockets, and RFID zippered pocket that prevents unauthorized access to personal information. The rain flap over the front zippered pocket helps protect your belongings from the elements. Top grab handles unzip and pull out of zippered compartments and easily tucks away to conceal when not in use as a portfolio. Backpack straps and locker loop unzip and pull out to attach to d-ring hardware and tucks away to conceal when not in use as a backpack. Removable, adjustable shoulder strap with hardware that tucks away to conceal when not in use as a messenger bag or sling bag. Zipper pulls can be locked together for security purposes when traveling (security lock not included). Trolley strap feature slips over luggage handle for easy transport