Although most of us will never be on a traditional battlefield, unfortunately, our schools, office buildings, concerts, and other public places are all too often turned into war zones that require us to be prepared to take defensive action. Everyone knows to flee at the first sign of an active shooter. The Rear-Guard Backpack Insert from Streetwise Security Products keeps you safe during your retreat. When fleeing is not an option, it can be removed and used as a shield. The Streetwise Rear Guard Backpack Insert instantly converts your ordinary backpack, laptop case, or handbag into a ballistic shield capable of stopping nearly all hand gun rounds (even 9mm and .44 Magnum!) as well as protection from sharp or pointed weapons. But don't take our word for it; our inserts have been tested by an independent facility to National Institute of Justice (NIJ) Level 3A standards. This is the highest level of protection currently available for lightweight, flexible (soft) body armor. Unlike the heavy, rigid chunks of metal used in the past, our Rear-Guard insert is so flexible and lightweight they will not even know they are carrying it. Made of a high-tech material know as Ultra-High Molecular Weight Polyethylene (UHMWPE), it measures eight by ten inches, weighs 10.4 ounces, and is flexible enough to conform to whatever it is placed in. Because our insert contains no metal it is airport and TSA friendly to ensure that you and your loved ones will be protected even when traveling.