So you have built your backyard bomb shelter, but what to hang on the walls? From areas with dangerous natural disasters to full-on war zones, ever building in the heat of battle could likely use a layer of X-Flex. As the video demonstrates, a single sheet is sufficient to keep a wrecking ball from knocking down a concrete block wall. And for the paranoid homeowner: yes, they are even developing a standard commercial version for ordinary citizens.
However, this was initially developed in conjunction with the U.S. Army Corps of Engineers for military and other lifesaving purposes abroad. The idea is simple: take rolls of this wallpaper into occupied areas or contested zones, unroll it and stick it on the existing wall. In the event of an explosion, debris is caught within the strong kevlar-sandwiched elastic surface and the tightly-bonded material can even help hold the sides and structure of a building together.