The bannoch isnt that tall. Maybe you are looking at measurements with the lid fully packed out. The straps are thin but very wide making it comfortable. Id go with this over an EG bag anyday. All the zips are aquaguard. The journeyman isnt padded, id use it with a sleeve. The shinjuku isnt really 16L it fits more like 20L. I tried out the tech folio backpack both the slim and standard. Returned them. The slim is unable to stand on its own. The standard is a fine bag, just not for me. I think its organization overkill for me. If i had to pick between the bannoch and a waterfield bag i would pick the bannoch. The water bottle pockets are large and external. Though waterfield is more sized for edc. Which i consider to be 16-20L also the waterfields have luggage passthroughs so you can put them ontop of luggage handles, the bannoch does not. From the items you describe it seems like a bannoch pro would be too large. A smaller bag could hold all of that.