Designed to fit seamlessly into the Navigator Sling, this lightweight, and flexible backpack armor will provide you and/or your loved ones with years of dependable service. We use the same ballistic material in these panels as the material used in our soft body armor vest for law enforcement. t is tested to meet the NIJ ballistic standards for Level IIIA, is just .22 thick, and constructed of the finest USA made Kevlar and features a rugged 500 Denier CORDURA outer shell, and is TSA approved. Note: Pick a panel at least 1 smaller than the listed internal dimensions of your bag.