The Ballistic Backpacks from Visvim meet all the demands of the user, from the materials and construction to functionality. This season has seen a number of colors produced from the grey piece already made available online to the vibrant yellow and orange to these more mundane pieces, black and pale blue. Made from a Nylon/Cordura fabric and the bottom in elk leather the 23 litre version is a very impressive piece.

Thanks to Tres Bien for the info.