This is the dream of all laptop owners that have to travel a lot, it is made from a high density material in fact they say that this ABS and Polycarbonate mix is actually what goes into making bullet proof glass.

That means that this bag will be able to take around 250 lb/ft for force, so even if a heavyweight in high hills stands on your case it should be all right.

Features – Despite its exceptional strength, the impervious briefcase weighs only 3 lbs., resulting in a piece that is both durable and easy to carry. Two accordion-style, padded compartments inside the case can hold a 15.4″ laptop, notepads, and several folders. Separate pockets for a cell phone, a calculator, and writing implements keep business essentials organized. The generous interior is lined with 420-denier nylon and the handles are made of durable PVC plastic. Includes an adjustable shoulder strap. Silver or Black. 15 1/2″ W x 1 21/2″ H 3 1/2″ D. (3 lbs.) Priced at $99.95

Source [Hammacher Schlemmer]