It is about 8 lbs minimum... I personally don't think that pack is right for me. I grabed my old kelty Map3500 and Marauder for comparison than after packing them up with the same gear Kelty did much better. I will still utilize the claymore pouch and their internal pockets for organization but my quest for nice pack is still on. I'm currently looking at TAD FAST 2 gen.
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Matt
http://brunerdog.tripod.com/survival/index.html