If photography is your passion, you are constantly on the lookout for the perfect moment, you want to get everything right - the scene, your subject, your camera, the right choice of lens and your camera bag. To protect your photo bag from the dangers of the urban jungle, all Jackpack 4000 bags are made of from Chicken Tex Supreme. It is a 4 Liter semi-professional SLR sling bag with adjustable dividers for flexibility and ease of handling.