We say “might,” because we haven’t tested it yet; but sandwiched between the hard exterior shell of Incase’s new Chisel case and the iPhone it protects is a second, soft case with a secret ingredient called Poron XRD — a material we’ve found almost unbelievably excellent at absorbing impact energy.

Is the G-Form Extreme Sleeve for iPad ($60) really and certifiably resistant to explosive munitions? Dunno. We don’t have access to C4, and our insurance company would probably refuse to cover us if we did. Also, we didn’t run over the Extreme Sleeve with an iPad in it or drop bowling balls on it, because we’re pretty sure these aren’t use-case scenarios most (or any) iPads would encounter.

What we did do, however, is run the little monster through rugged alpine and gritty urban environments, then compared it with other extreme-environment solutions for the iPad. Here’s how it did.