Tamrac 5786 Evolution 6 Photo Sling Backpack Bag (Brown/Tan) The Evolution 6 Photo Sling Backpack can be carried three different ways: as a backpack, as a sling pack on the right shoulder, and as a sling pack on the left shoulder The Evolution 6 is perfect for a DSLR with up to a 5" lens attached, an additional lens or two, a flash and accessories. When worn as a backpack, the two foam-padded shoulder straps, waist belt, and chest strap distribute the weight To convert the Evolution 6 to a sling pack, cross-connect a single shoulder strap  red to red for carrying on the right shoulder, or blue to blue for carrying on the left shoulder The Evolution 6 features Tamrac's QuickClip tripod attachment system with a Tripod Foot Pocket, allowing a compact tripod to be easily attached and carried