Polycarbonate - Shell material is made of vacuum formed polycarbonate, a highly lightweight and impact-resistant plastic,which can be bend and flex in response to its surroundings,make your case more durable.
Security Authority (TSA) so that American authorities, using a special TSA key, can check your luggage without damaging it.
Expandable - Fabric folded within a zipper compartment opens with a zip to add more carrying space to the interior of your suitcase. Both sizes expand for added packing capacity.
Spinner Wheels - Four wheels,zero effort, four multidirectional spinner wheels allow 360 degree upright rolling in multiple directions so there is no weight on your arm. An exterior mounted pull handle is not only uniquely designed, but also maximizes your room of your suitcase.