Son has a Vaude Path (older version), and I have an *ancient* Vaude Tour. Both are brilliant bags – comfy, stable, a few features but not too many. His has more – including a zip to double the size on big days. Mine is now 20 years old and is just starting to show its age some… Underrated IMO.
Youngest son has a Salomon Trail 10-15 running pack, again it is simple, light and stable, with similar expander zip to the Vaude. It is well made, but a bit too light and I expect it to not last as long.
Avoid the cheap Karrimors – I have one, and while it works, it says a lot that I keep choosing the Vaude…