I have a 5.11 Rush 12 which I love, feels very well made and it's full of places to store stuff. Tons of pockets, looks easily good enough to be an EDC one too. Comes in a variety of good looking colours too.
Second the rush 12. Use it at work for my kit but admittedly it does have a fair bit of molle on it. Does meet all your other criteria tho. Used mine for carry on luggage and traveling about in the USA. Has 1 main compartment (2x internal mesh zipped pockets, hydration bladder slip. 2 outside zipped pockets 1 small 1 large (large being admin use) pen slots, space blanket sized pouches etc).
1 secret (behind the grab handle) pocket that's fleece lined and zipped. Sun glasses / mobile sized.
Large full sized zipped section to access back panel area (I keep reusable space blanket which adds padding too)
Mines got a few miles in it now and still looks good. Bit rough around edges.
Compression straps on outside I use to hang light jacket etc for immediate use. Or an umbrella (!?!?!?)
Good wee pack. However I feel you may not get around the "tacticool" look it has.
PS. I also carrys my sit pad and brew kit into the woods with the dogs on a walk too. Seems I use it for exactly what you are asking for. Work, day to day, woods.
