Constructed with a lightweight, 100% pure polycarbonate frame and a durable nylon exterior fabric designed exclusively for Victorinox. Aircraft-grade, one-touch, dual-trolley aluminum handle system. Four premium, 50mm Hinomoto wheels ensure smooth roll across any surface and provide 360 Degree, zero weight-in-hand maneuverability. Spacious main packing area expands 3 cm (1.2 inch ) for additional packing capacity. Padded front u-shaped zippered compartment holds a 15.6 inch laptop. Two quick-access front pockets hold tickets and other essentials. Interior organization includes a large zippered mesh lid pocket and a zippered mesh hanging pocket containing dedicated storage for a Lifestyle Accessories 4.0 CheckSmart luggage tracking device (sold separately). X-shaped compression straps cover a greater surface area to keep folded items secure. Top retractable haul handle and bottom grab handle for easy carrying. Integrated ID tag for security and convenience. Lockable coil zippers provide superior burst strength on the main compartment and laptop compartment. Custom zipper pulls feature a thumb groove inspired by the Swiss Army Knife.