LARGE WHEEL BACKPACK: Rolling Backpack have 18CM(7inch) Wider large Wheel, steady, heavy loading, saving labour and time, easy thru airplane aisles and stair, do not worry the wheels turned sideways, also do not worry wear off the backpack 4 DIFFERENT WAYS TO CARRY IT: Backpack for casual hands-free carrying, Smooth-Rolling for effortless travel, Haul Handle for low-profile short trips, Top of Carry On Bag for quick trips through the airport LARGE CAPACITY SPACE: Large rolling backpack size is 14.6*11.4*20.5 inches(37*29*52 cm). The product weighs 6.6 pounds/3 kg. The Padded laptop compartment holds up to 15.6 inch laptop, as well as 15 Inch 14 Inch and 13 Inch laptop. Large main compartment roomy have 48L, hold books, clothes, documents and folders. And other multi-pocket organizer with key fob provide more storage for smaller items, ideal gift laptop rolling backpack, wheeled laptop backpack UNIQUE DESIGN: Nylon Water Resistant Tear Resistant Polyester Fabric An