_ sized for TSA overhead-bin fit on most airliners _ padded laptop sleeve loads from outside & fits up to 17" laptops _ stiff bottom w/ softer compressible sides & top _ wide wheel-base for tip-free maneuverability _ wide compression-straps w/ large buckles _ multiple organization pockets throughout _ MOLLE/velcro areas on external surfaces _ included 3-D rubber i.d. window on side _ two super-padded carry handles top/side _ high-quality telescopic/locking pull-handle _ big bottom glide-rails absorb travel abuse _ all-terrain, oversized, smooth-rolling wheels _ wide opening main bay door for packing