Tenba s patented Air Case construction comprises a multi-layered skeleton of air-channeled plastic panels, high-density foam, and specially-molded framing components, with a heavily reinforced ballistic nylon outer shellproviding the protection of a hard-sided case at a fraction of the weight. The RS-M17 Air Case will carry a 17 iMac. Air Cases are strong enough to stand on, even when empty, and are built to meet or exceed ATA shipping standards. Includes Tenba s exclusive Datapanel identification system.