Constructed of premium ripstop material for lasting durability. Four multi-directional spinner wheels allow 360 upright rolling so there is no weight on your arm. Laptop compartment protects and holds up to a 15.6 laptop. Felt lined hidden pockets to protect valuables. Quick change back panel technology allows for a quick access to backpack straps. Stealth zippered water bottle pockets. Push-button locking ergonomic handle for comfortable transport. Padded shoulder straps for increased comfort. Weight: 6.4 lbs. Fabric/Material: 600D Ripstop Poly.