Express Backpack Armor InsertDescription There are times when tactical armor, even concealed armor, is not appropriate but this does not mean protection is not needed. Whether it is because of the clothing you will be wearing, the setting you will be in, or the need to remain inconspicuous National Body Armor's Backpack Armor Inserts offer another option to ensure ballistic protection is still close at hand. Perfect for the business executive, close protection professional, plain