J World Twinkle 18" Rolling Backpack features "Lightening" wheels, 3 stage locking handle, padded shoulder straps, side water bottle pockets and more * Product Material: 600D Polyester * Product Weight: 4.40 lbs. * Recessed three stage locking handle with push button * Soft and noiseless wheels with magnetic self-lightning system * Padded shoulder straps and back with slip in system * Bottom mold for protection * Padded grip handle * Side mesh pockets for water bottle * Organized front pocket with pencil holder, key fob and mesh pocket * Front vertical zippered pocket for easy access