Laptop-Safe Storage: Trolley features a dedicated 15.4" laptop compartment with secure access and a built-in combination lock, ensuring your tech is protected and easily accessible during travel.- Foldable Backpack with 13.2L Capacity: Backpack expands to a spacious 13.2L with compartments and a laptop sleeve, offering organized storage. Folds down compactly when not in use to save space.- 360 Spinner Wheels for Easy Rolling: The trolley's smooth, multi-directional wheels ensure effortless mobility through airports, stations, and tight spaces, reducing wrist strain and travel fatigue.- Rugged, Travel-Ready Materials: ABS hard shell on trolley provides excellent impact resistance; backpack is made with tear-resistant and water-resistant fabric for durability in all conditions.- Airline Cabin Approved Size: The 45cm (17") trolley fits most airline cabin size limits. Despite its compact profile, it offers ample storage with a 39-liter capacityideal for short trips or overnighters.- Lightweight and Portable Design: The backpack weighs just a few ounces, making it comfortable for long wear. Its lightweight build and foldable design are perfect for carrying extra gear without added bulk.