Ursack Pack??

Was thinking the same thing myself. It would be nice to have a truly bombproof pack for no added weight.
The dimensions of the ursack are a little narrow for a pack, though. Sewing large pockets to the outside might work, but kind of defeats the purpose.

I've only just seen pictures of the Ursacks, so I don't know if this would work, but maybe you could turn one inside out and sew shoulder strap/s and pocket/s to the inside seams and carry it inside out, then turn it right side out to use as a bear bag.

It's funny this should come up. Yesterday I was talking with one of the Sales people at warwick mills that weaves most of the Vectran in the US as well as other things like Specra and Kevlar.

What I found is most of what Ursack is using is blistic seconds. Also all three of the fabrics I just listed break down in UV quite quickly. Kevlar being the worst Spectra being the best.

I got interested in this becasue I was in a junkyard last weekend and cut off some opened airbags wich are made from Vectran. Using two I made a stuff sac from to use for weekend trips. I then thought maybe I could find some seconds to make a bigger bag. However after talking with Ed even the price of the seconds was a bit more then I wanted to spend. Also after talking with him more Vectran did seem to be what I wanted. Due to the loose weave, it may be bear proof but most likely would hold out small mice so it would need to be hung. Since I already use an air tight plastic bag I'm not sure it's worth the weght.

JFF

Not only that but Kevlar is'nt easy to repair once abraded. Pretty soon you'd be carrying a pack that looked like fleece. It's abrasion resistance is'nt great, and it is heavier than most any of the other more UV resistant fabrics.