The underseater is designed to be your go-to carry-on. Fitting under most airline seats avoid lifting and storing above. USB Charging port - power bank inside for the USB port to charge personal devices. Four multi-directional spinner wheels offer easy mobility. Telescoping handle locks into position. Interior features mesh pockets and laptop and tablet sleeves. Exterior zipper pocket with organization panel. Smart sleeve compatible to hang over most upright handles. Dimensions: 16.5" x 13.75" x 9". Power bank for USB port NOT included.