I went back and found the pic of the iritation that initial AlpZ packed caused me. It's not that the entire pack was pressing hard into my upper back... again.. their design (on whatever model of pack that was from them)... was a rip-off of the Tenzig design, but they had to invert it, most likely to avoid patent infringement. And because they did it that way... the velcro at the tips of those straps would grab onto the fabric of my shirt from the movement while hiking and would roll-over away from the pack and poke that pointy strap edge, AND the non-soft side of the velcro and stab me in the back between my shoulder blades.
It's entirely possible that they quickly on subsequent models saw the error in their (design) ways and corrected it. I don't know. I was just trying to do the right thing and make sure I shared with the brother the story of how I had to ditch their pack because of that painful design flaw. Do with that information what you will. I've had ZERO problems of this nature since I bit the bullet and upgraded to the Kifaru EMR II
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