Tenba 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 shell—providing the protection of a hard-sided case at a fraction of the weight. Air cases are strong enough to stand on, even when empty, and are built to meet or exceed ATA shipping standards. Case includes adjustable dividers that can be trimmed by the user to customize the interior.