ATA Rated ATA (Air Transport Association) specification 300, category 1 is the highest standard for an airline transport container (a minimum of 100 common carrier trips). Category II has a minimum of 10 trips by air.
Cubed Foam Layers of 1" thick foam 3/4" dye cut squares for customizing the interior.
Layered Foam Sheets of 1.4 pound density, 2" ether like ester (ELE) foam.
Waterproof Moisture resistant cases specified under Military Standards.