Unlike other Macbook protectors, this case is designed to be left on your computer at all times. Think of it as a sleeve you can use while the computer is still protected. Because it acts as a sleeve, it’s checkpoint friendly and can protect your Macbook on its sometimes perilous trip through airport security. I’m a big fan of cases like this because while some incidents can happen during transit, I often see the worst damage occur during the process of putting a laptop in a case or pulling it out. A hand slips or a zipper you thought was closed wasn’t. Ouch. Codex has Viscotex™ inserts and Terahedron™ inner lining to provide a advanced level of shock protection.