I have done a extensive research online and read the reviews from previous purchasers on this product. I choose Khaki in color for its natural appeal. I purchased two Nalgene water containers to complement the purpose of this versipack. I've viewed You Tube owners of this Maxpedition Mongo Versipack. And used their individual hints to prepare my own pack. It is important for one to research a product and get feed back on Pros & Cons.  For my individual purpose of this Maxpedition Mongo Versipack is both an EDC & BOB. Though a regular back pack is not everyones cup of tea in view of versatlity and needs.
my needs & what I chose to carry is that this product has the capacity and specifications. It's the only reason for my purchase of this product. It exceded a basic back pack configuration and its functional for my present needs. lots of bells and whistles one might conclude.
August 13.2012 Update: The Mongo VeriPack is what I expected to be. Though the main opening under the side flap creats and sight opening. Where if I was in a down fall the contents would get wet. Their is no drainage hole. Like the water bottle pack. I see this as a over site & recommend Maxpedition to make modifications to remidy this flaw in their present design.
Thats why I now gave a 4 Star rating. But overall I love this bag and will make fine use of it for years to come. I highly recommed this product to everyone. Amazon Prime membership saves me money and shipment is delivey is 2 days. Check it out.