Constructed of durable polyester. Lightweight. “Spin 360°" 4 wheels system allows luggage to move in all directions easily. Retractable push-button handle locks into place when extended. Side carry handle for convenient carrying options. Expansion feature for extra packing capacity. Integrated TSA lock. Interior tie-down straps help to keep all of your packed items secure. Front zippered pockets ideal for last minute travel necessities. Mesh zippered pocket on interior of lid.