Granite Gear Escape A.C. 40 Ki

CampSaver.com says:
The Granite Gear Escape A.C. 40 Pack is built on the Air Current suspension, using Cordura brand fabrics, making for a comfortable ultralight pack that's durable and loaded with features. Escape A.C. suspension is the next step in the evolution of ultralight frame technology. It's similar to Granite Gear's award winning Vapor suspension, however, instead of being a flat sheet with flat foam, the Air Current consists of a molded sheet and a molded foam pad. Not only does it fit the 3D contours of your back, and is engineered to flex with your movement, the Air Current suspension has integrated air channels, which makes for a cooler carry. The Escape pack body is a top loader with a floating lid. On the pack's front, there's a large stash pocket with stretch panels that can accommodate much of the gear you need to have close at hand. The pack's LineLoc compression system stabilizes the load without adding much weight. The side pockets are flat, covered with a stretch bottle pocket that's angled perfectly for bottle access without taking off the pack. There's also a pocket that perfectly accommodates our Cloud Cover rainfly (sold separately), so it's always ready in a downpour.