Volume / capacity purchases in measured:
Forvert: 2x 1l bottles Vodka + 2x 0,7l bottles of wine + 8x 0.25l Red Bull cans + a Kaputzenpulli size XL
Deuter: Forvert + 2 more cans of Red Bull
North Face: + Deuter another 0,7l bottle and any little things like jelly beans.
Comfort at the above content:
North Face: 5 stars - is well padded and the spine really does not sweat.
Deuter: 4 stars - well padded (see below).
Forvert: 3 stars - the risers are not padded, a little too short and cut a bit into the flesh.
General Handling:
North Face feels significantly heavier than Deuter or Forvert, one thinks at first that they had not yet unpacked everything. The material is fixed, so that the backpack does not itself folds up by itself when you developed it or loads, the zippers make a stable impression. The back contains the inside an extra padded pocket for a laptop and another for 10-inch tablets. According to the manufacturer, Borealis is designed especially for heavy things.
Forvert is like North Face, also does not work together by themselves. He is very good for cycling on the back and keeps the center of gravity close to the body. Apart from the for me something I noticed nothing negative to short risers. This backpack is just not meant for heavier loads. A textbook, few books and a small bottle of water would probably not an issue.
Deuter Go Go is significantly softer than North Face and the zippers are also narrower. This makes it less rigid and must be held at loading and unloading with one hand. However, it is deeper than other backpacks and attracts so backwards or on the bike in the curve and to the side. As a daypack for some clothes he would be perfect. Alone from a processing perspective, I would not dare to carry so heavy things.
Personal Conclusion:
Place 1) North Face Borealis - 5 stars. Genial for shopping and also for school and university would he are wonderful.
2nd place) Forvert New Louis - 4.5 stars. Half point deduction due to the short risers.
Place 3) Deuter Go Go - 4 stars. The material was me was too soft, trust him to heavy contents.