Best rucksack for secondary

[OpalSky]

Looking for recommendations for a strong rucksack for secondary as my DD rucksack already falling apart and only had it since start of term.
Need one that can:

1. carry a very heavy load
2. can fit an A4 ring binder or 2
3. colour black preferable
4. has a water bottle holder section on the side
5. no massive great brand logos, small ones fine
6. lasts ok in rainy conditions without all books getting soaked
7. strong and last well!

Is this a difficult ask? 🙏🏼

And another vote for Kanken.

Eastpak, Jansen or Nike. But is very area dependent.

It workers aren't at school and wanting to fit in with crowd 🤦🏻‍♀️

@AmberDachs fantastic! 😁

Another vote for Jansport, very hard wearing and fit everything!