JULIS, Israel (AP) — An Israeli company says it has come up with a unique item to protect against the threat of school shootings — a bulletproof backpack that transforms into a bulletproof vest.

Masada-Armour says its backpack also deploys a protective vest in less than two seconds by flipping out an armored plate from a concealed compartment. The standard protection claims to stop handgun bullets while upgraded versions can block rifle fire.

Co-owner Yair Rosenberg says the product, with its front and back protection, was designed to provide schoolchildren defenses against mass-shooting attac...