The London Fog Brentwood Iii 15" 4 wheel under the seat bag is designed to fit underneath most airline seats. This Usb has a built in Usb charging port and an interior padded tablet compartment. Zippered dividers, wet pockets, and multiple interior and exterior compartments help keep you organized while you travel. Dual carry handles, smooth 4 wheels with aluminum channel trolley handle, and back strap provide multiple travel options.