It is an ultra practical bag that I was looking to limit the number of bags to be taken to go by train. It allowed me to carry my tripod (medium that can sit in a small pouch marsupial [plus 2 straps] that we do not distinguish the image as it retracts into the body of the bag), my laptop (with charger / transformer. in the compartment of objectives) and my equipment pictures. The lens compartment / SLR is fully modular. The straps are numerous and provide good embalage (thus rigidity / increased protection) of all. Two interior flat pockets stow small items and find them easely thanks to the latticed walls type. No need therefore to ouvir a pocket to see what's there. It lacks a little protection on the top / front that will not protect the Capeau PC in case of impact. The zippers (that run throughout the portion of the bag Seemingly lacking a bit of strength. Overall this is a great bag that needs to save space car ... Because vraissemblablement this bag n ' has not been tested after manufacture by an engineer would have placed on its back. Explanation: the plate that provides rigidity to the base of the bag painfully rests perpendicularly to the spine above the lower back as soon as one puts on . It becomes unthinkable back very far to walk, let alone ride a bike with this bag To summarize thus:. He demonstrated a great value for money for those who travel by car, but breaks horribly back to that wants to use walk into town / in kind ... It is quite disappointing since it seemed to be the only address that need in this price range when I bought it.