Oh and then there's still the daypack. In my opinion, it was too small at 8s, but the size of the 9s tell me already rather. It is not a problem nor a thin jacket to accommodate drinking with something. Of course, most bags no solid ground between the camera compartment and the daypack is but because inside is not waterproof are also at a fixed stitched bottom only a matter of time until the water is likely to find its way. Therefore, it is probably more of a general question whether you want to take the risk to have a drink to carry over its equipment yet or not.
An important point in my opinion, the other from the recession is not apparent is that the daypack is padded. Say you can not accommodate a second body or another big objective is readily eg when needed. Also, this is protected against shocks.
Otherwise, as I said, the workmanship is very good, the storage options of the straps class, just as hand luggage. Thus, the backpack can be easily stowed in the overhead bin.
Once I have the first practical application behind me I will add my recession. But that might be the case only in the spring.
Now it's become a bit longer.
Have fun if it should be this backpack.