Osprey Luna 85

First time out with the Luna I carried 55 lbs for four days. Not only was I cool (thanks to space between back and pack) and comfortable, I was very happy with all the features of this lovely piece of engineering. Good fit, smart design, easy to pack and seems well-made and durable. A bit heavier than other packs, but well worth it for the extra comfort it provided. I had never used a hydration bag/hose before (I'm a slow adapter) -- I had 3 litres of cold water siphoning into my sweating body. Sweeeet!