Its tipi material.. more or less I"m assuming the pack is fairly waterproof then?
Patrick confirmed that if the pack is seam sealed it should be more or less waterproof. By his choice of words I got the impression that he thought it would be waterproof if sealed, but that he didn't want to guarantee it. I can understand that.
I don't know that anything but the pack I saw a guy in AK on our deer hunt had.... is waterproof... it was actually basically a heavy dry bag with straps....
I'd think that you could sweat stuff in it to damp, and that it could leak even if seam sealed.. not sure how the seam sealing will go with a heavy load in it, IE stretching some... but basically the pack will probably stay fairly dry is my guess.
