Tamrac 5789 Evolution 9 Photo/Laptop Sling Backpack - Black Convert to a Sling Pack: 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 Foam-padded Computer Pocket: In back, a completely foam-padded laptop pocket holds most 17.3" screen laptops Foam-Padded Top Compartment: 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 QuickClip Tripod Attachment System: 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 Side Pockets and Rain Cover: 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