Backpack trolley in resistant polyester 300D. With USB charging port -power bank not included-, inner padded pocket for laptops up to 15 inches and inner compartment for tablets up to 10 inches. Main pocket with double puller and front and side pockets. Compartment for trolley mechanism with zipper closure, reinforced handle and wheel cover accessory with Velcro fastening. Padded back and adjustable shoulder straps with padding.