Even the newer weaves from what I have seen will not stop everything and will offer the same protection that a level 2A vest nowadays. While it is lighter weight and easier to wear bullet resistant is still the term to use. Police, SWAT, Federal law enforcement and the military use these as a way to help protect them from some forms of bullets but not all.
Back-to-school shopping: Bulletproof backpacks, other protection on the to-buy list. Bulletproof protection and safety from shooters is on the mind of parents and students during back-to-school preparations. Companies report higher sales of bulletproof backpacks, bulletproof backpack panels, special glass that can keep a shooter from… Source 5v.