I have been trying to assemble a bug out bag for a while now... I pick up survival gear here and there to add to mine as I go. I have just been using an old book bag, but I stumbled upon this today: http://www.lapolicegear.com/diplomat...backpack1.html its a pretty nice MOLLE compatible back pack for $30, and I think it came to $40 with UPS shipping to my place. This bag looks very sturdy for BOB purposes, and the price can't be beat considering most bags like this go for between $100-200. I figure you guys might want to check one out. I will report back on how I like mine when it arrives.