Backpacker Magazine 2011 Editor's Choice Award winner.The Granite Gear Blaze AC 60 is a spartan in its simplicity and features their engineered aircurrent suspension. The aircurrent suspension consists of a 3 dimensionally molded alloyed frame, a quick torso length adjustment system, padded shoulder straps, and a swappable hip belt for a custom fit. the ac frame has molded air channels, works in conjunction with a molded foam pad and durable stretch mesh to aid in venting heat and moisture away from the back allowing for natural evaporative cooling. The pack body is a simple, lidless top loader with a tall spindrift opening that can be cinched and rolled down tight for weather resistance and also expanded when extra space is needed. the arched line loc compression system allows the load to be cinched tight in every direction side, front, and top as well as allowing additional gear to be lashed to the pack. the line loc cord can easily be replaced if it wears out from extended use. durable and versatile stretch mesh pockets on the bottom of the pack sides work well for water bottles, while the tall front center pocket is great for damp tarps or ultralight tents.