Scratch- and break-resistant polycarbonate means lasting utility from this smart carry-on that is surprisingly lightweight.Closure: The two-way zip closure features a flush-mounted TSA lock for reliable security.Exterior features: Four large Hinomoto casters offer total maneuverability, and an integrated USB port connects to an internal compartment where you can add a battery pack for charging on the go.Interior features: Zippered mesh pockets keep your things organized in this bag's large main compartment, which features compression straps for secure packing.Special features: A smart zip panel lets you expand the bag's capacity for added versatility. Top carry handle; telescoping pull handle Polycarbonate Imported