Excellent pack for the weight
I thru-hiked the PCT with this pack and was quite impressed. I needed something that was lightweight, yet able to hold moderately heavy loads for short stretches, and the ozone fit the bill nicely. As advertised, it comfortably held between 30 and 40 pounds without putting too much strain on your hips or shoulders. The material is lightweight, yet really durable so long as you don't toss it around like a bowling ball. My only gripe is that the screw that holds the right strap onto the frame tends to loosen up and come out if I don't check it from time to time. All in all, a great pack that I still use, even after putting 2,600+ miles on it.