The DefendAPack Backpack transforms from an unsuspecting trendy backpack, into a double-plated (NIJ Approved), detachable, ballistic vest, that can be securely fit in 15 seconds or less, by almost all ages and sizes. Quick reaction to an active shooter situation. Our most versatile option. Choose your level of protection. All age appropriate. 360° of protection. Patented design, nothing else like it exists.