This backpack comes pretty much truth in everything I have wished for.
It is great that my entire equipment reinpasst.
This is an EOS with attached telephoto lens (55-250mm) and backwards up the lens hood.
A lens (18-55 mm) with right side up patch Gegenlichblende.
A lens (50mm) with fixed focal length. A flash, various filters, memory cards, spare battery, charger and a bellows.
On the side fit in two bottles, which I think is great. Up still fits a raincoat and a lot of food, cell phone, laptop, keys, etc.
The backpack is well thought out in my opinion, very good, and even has a rain cover case that you can not lose because they were sewn.
Access to the photographic equipment can be carried out via the waist belt, one has virtually a vendor's tray, and does not have the backpack off the dirty floor.
If one has no other backpack, you can down (of course in the corresponding protection bag) simply raustun mainly equipment, and "rebuild" the backpack to normal backpack by simply opening the Velcro fasteners.
The backpack wears very well, I'm sweating including not much.
The only shortcoming is the too short guessed chest. But that is more my great bust.
PS: It takes time to write reviews on Amazon. It would be nice if I get some feedback. Many Thanks!