I'm going to give it a little while before I buy the whole pitch. ;-)
For kicks today I did some crude puncture tests of Kifaru's fabric, (2) layers, compared to some 500d Cordura I have. The Cordura was noticeably stronger. Really no surprise there as the the Cordura runs in the 6 to 8 ounce per yard range and I'm guessing the Kifaru fabric for (2) layers would be 2.5 to 3 ounces per yard. Another thing I noticed was how stretchable the Kifaru fabric is compared to the other. This characteristic is apparent in many of the photos.
In the end I think it is going to come down to whether the Kifaru's (2) layers is strong and durable enough for people's uses over the expected life span of the pack. I have a new pack in 500d Cordura and Spectra/Dyneema that WILL be handed down to my son. Time will tell how these new packs holdup. Hopefully, they will work just fine and we can all dump our heavy packs and save a few pounds.
