Lowepro recently released its SlingShot 300 AW, the third model in its SlingShot line of sling-style camera bags. The 300 AW is the largest of the lineup and is designed to carry a pro SLR body (or two) with five or six lenses, plus accessories.

The SlingShot bags work much like backpacks, but can be swung to the front of the body, allowing quick access to gear...