As easy to insert into a standard-sized student backpack as a school notebook, Byrna Shield Backpack Body Armor is a thin, lightweight,14 oz, flexible Level IIIA-rated ballistic plate. It can withstand up to 6 hits from .44 magnum bullets with velocities up to 1,464 feet-per-second. For the price of a pair of sneakers parents can have peace-of-mind, knowing they’re giving their children a chance when the unthinkable happens, and avoid the high cost of regret. Pay It Forward: 10 percent of every purchase goes to the Meadow Pollack Memorial Fund to supply inner city schoolchildren with ballistic backpack body armor and other school supplies.