Best roomy backpack -with hydration bladder- for cycling?
Been searching around online for a somewhat ample pack, haven't really arrived at any conclusion as to what to get. I'm looking for a backpack with enough storage to take a meal for the ride, a juice bottle, and water (either in a bladder, or in bottles).
I also need to accommodate the stuff I'm already usually carrying; some safety/rain apparel, some tools for the bike, lights, sunglasses, work related items (nothing big), and personal ones.
I want the backpack to be roomy (not excessively, though) and durable of course, water-proof when needed, but not as bulky as to impede vision on the back, or hinder maneuverability.
Here's some possible candidates I've looked at so far:
Is there some consensus as to what brand -or style of pack- does better?
Thanks much :)