Abstract: Containers or kits are shaped to fit within interior voids or spaces of a backpack. Containers resist crushing or other damaging forces that may be present within the backpack interior space. Containers provide for the efficient and effective transport of food and other items within a soft sided carrier, and are easily opened for convenient access to the contents contained therein. Containers can be shaped so that they fit on top of books and other items being held in a backpack. The containers or kits may be designed for a standard adult backpack, a standard child backpack, or any other desired backpack or carrier configuration.