Ron from Six Moon Designs did a great job showing off the new packs and explaining their features. He revealed two new series of adjustable packs:
1) The Fusion Series, fully-framed packs in size 50L and 60L, which have a single aluminum stay down the center of a stiff, supportive foam/plastic backpad. Shove it pocket on back. I was able to get a great fit with the 60L size. Though I didn't try on the 50L, they use the same frame/harness/adjustment system. T. Could comfortably handle loads of 35 lbs or more. The Fusion packs were prototypes so Ron asked us not to publish photos of them yet.
2) A lighter pack with a hoop stay in size 30L and 40L, for hiking or trail running with lighter loads. This pack is still incredibly supportive with a unique double chest buckle and wide shoulder straps. Highly durable stretchy mesh side pockets. I was able to get a great fit and I think this pack could comfortably handle 25 lbs or possibly more.
Both packs are designed to pull the pack away from your back at the edges near your spine, leaving less of the surface of your back to get hot against the back pad. It works.
I'll be posting photos of the lighter packs, which Ron said was OK.
Brian and Ron did a fantastic job with these packs. Hard to believe they're just the first gen packs of their series.