The Evolution 8 offers unprecedented versatility for quick access to photo gear. With its unique harness system, the Evolution 8 can be carried three different ways - as a backpack or as a sling pack worn over the right shoulder or the left shoulder. With Tamrac's Triple Access System™, there are also three way to access photo equipment - through the front door and through two side doors. The Evolution 8 is perfect for a DSLR with a grip and up to an 8" lens attached, several additional lenses, and a flash. To convert to a sling pack, simply 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 other shoulder strap is easily tucked away in Tamrac's Tuck-A-Way™ harness system. In back, a completely foam-padded laptop pocket holds most 15.6" screen laptops and others up to 15" x 10¼ x 1½" in size. A foam-padded top compartment provides storage for a light jacket, lunch, or other photo accessories. A mesh pocket in the back keeps small accessories separate and secure, while a Windowpane-Mesh™ pocket on the inside door panel holds additional small items. A tripod is cradled (centered and balanced) securely with Tamrac's QuickClip™ tripod attachment system while the lower Tripod Foot Pocket holds two tripod legs secure. Each side has a zipper-closing pocket for accessories like a phone or iPod. The right pocket contains a removable rain cover, which can be slipped over the pack during extreme weather.