I've been searching for a good hot weather backpack. I'm not looking forward to sweating it out with my Chrome Metropolis all summer.

Your pack looks almost perfect. I have an older Marmot backpack that isn't large enough for a tall guy like me to get any support from the waist strap. Plus all of the dangly straps from that waist band drive me crazy. Commuting, I tend to pick up and put my bag down all over the place throughout the course of a day. I couldn't stand getting straps from my older pack stuck in stuff periodically. Any issues like this for you? I suspect Marmot probably addressed the problem with my older design.