I am training to hike NOBO in March. I have been doing 12 to 22 mile hikes with my Osprey Eos 58 loaded to 35 lbs which is my max cold weather weight. It seems to ride ok. Just for fun I loaded the same weight in my old Gregory Robson pro and did twelve miles with it today and it literally felt like I wasn't carrying anything. Obviously, I am going to go with the Osprey. At 2.5 lbs. versus the Gregory at 7.5 lbs. In fact, the Osprey with my bag, pad and tent weighs less that the Gregory empty. My point is that the RIDE and suspension is also very important. Of course if I had to I could carry twice as much weight and volume in the Gregory. (My Gates of the Artic hike, I carried 65 lbs in the Gregory for 100 miles.)
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