The Think Tank Airport AirStream Rolling Case is an excellent companion for your tavels, meeting international carry-on limit sizes whilst providing capacity for a selected amount of essential gear including lenses up to 400mm. The AirStream has a high degree of security, featuring a TSA combination lock that secures the main zipper, a front security cable and combination lock that allows you to lock a laptop case to the front of your roller, a rear security cable and combination lock to secure the roller to immovable objects. Protection is further increased by the Airport AirStream features a security ID plate, the serial number of which can be registered on the Think Tank Website, that makes locating your lost or stolen bag far more easily. A handy stretchable front pocket provides easily accessible and much-needed space for newspapers, paperwork and other items required at a moment's notice. A further advantage of the Airport AirStream is the option for an Artificial Intelligence 15 laptop case to be slid in and out of the front pocket. This provides the advantage of the roller looking smaller even when the laptop case is inside the pocket. If for some reason you need to weigh the bag, you can remove the laptop case, making the roller lighter and smaller. Also, when you get to your seat on the plane, you can pull out the laptop case and put it on your seat before putting the roller in the overhead bin.