If you scroll down the page on the right there is a video titled: Lightning Packs on ScienCentral.

It shows it better detail how the Bungee cord system works on the pack frame. The bungee pulling UP keeps the pack weight from Bottoming out which is where the strain on your body occurs,



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seems to me the weight would hit harder on the downtrip - momentum.  I get the same up and down action when portaging my Wen rendezvous - I definitely feel the weight increase when the boat bounces down, similar to the video

PhantomJug wrote on Oct 2^nd, 2018 at 1:43pm:
no expert, but a pack that's floppy won't distribute as well on the hips so this should do fine because the stationary back piece is rigid. i think. as long as the damping is right and follows movement and doesn't overcompensate for body movement. looks like a great idea for trekkers.

PhantomJug wrote on Oct 2^nd, 2018 at 1:43pm:


I thought the same thing at first, especially when I scrolled down to video link and looked at some of the posts/videos making fun of it.

I went to their website, and they are serious about this technology. IF they have the military and first responders looking at it there must be something to it.

Check-out their ELECTRICITY generating backpack.
If that works well it might be another source for power in the backwoods assuming you portage regularly?

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Honestly, I thought the video looked like a poor CGI job.  A good backpack should actually distribute the weight to the hips, right?

At first, I think I'd be worried about my center of gravity shifting around just as I was tackling tricky terrain.  Could be that this pack actually "reduces" that problem and I'm sure my brain would subconsciously "adjust" somehow eventually.  Nevertheless, I suspect the learning curve would be significant.  The older I get, the more I visit my orthopedist... and the more I deal with stability issues.  I REALLY don't wish to invite any more.  I'd need a significant trial run before buying one, for sure.

Any resident physicists care to comment about the effect on one's "center of gravity"?

Jimbo   

If they get the Special Forces guy's to adopt it or at least give it real-world field test with loads most us would never attempt to carry, I'll be impressed.

Offhand I would think that constant movement would take some getting uses too.

PhantomJug,

Certainly unconventional.

I am not a mechanical engineer but my 1st thought is that this pack may not offer many benefits for a canoeist that walks with his pack on. It looks like this floating backpack is geared more for the person who may be running … as we saw in the product video.

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Seen this?  I wonder if there is a Granite Gear version.