The Evolution 9 Photo/Laptop Sling Backpack from Tamrac is truly named well for it represents the next step in backpack design. This unique pack serves dual functions as a traditional backpack and can readily and easily be converted to a sling-style bag.

Your gear is accessible through three access points - one in the front and two through the sides - all secured with zippers. The pack is strong and durable as a backpack should be with plenty of room for all sorts of gear including a 17.3" (43.9cm) laptop that is held in its own padded compartment. The harness system permits you to cross-connect a shoulder strap (right or left) to make it a sling pack. The strap not used is neatly stored using Tamrac's Tuck-a-Way system.

This pack holds everything from your DSLR with up to an 8.75" (22.2cm) attached lens as well as an additional 4-5 lenses, flash to the aforementioned 17.3" laptop. More than that, the separate top section of the pack can be used for personals such as a light jacket or even your lunch. Your gear is stored in the lower half - safely segregated from the top half.

Access to everything is easy via the front or either of the side doors. There are interior mesh pockets in which you can store small items like batteries, iPhone or memory cards. You can even strap your tripod on the back using the QuickClip attachment system that holds two of the legs securely. The tripod remains centered and balanced for ease of transport. On the right side, you'll find a removable rain jacket that can be quickly deployed when the weather turns sour.