Which water bottle for children at school?

[remakeandrenew]

I'm looking for a couple of new water bottles for my son for school. I love the designs of the ion8 bottles but they only go as big as 600ml and he needs something a bit bigger.
Is there another company that do nice designs instead of plain ones?
(Needs to be dishwasher safe!)

Why does he need a bigger one? Both my children have the ion8 ones and just refill it when needed.

Look at Etsy

We have SHO reusable. They go up to 1.7l in the screw top, come with a straw top if you choose that. They're double walled metal so keep the drink hot or cold. We love them!

600ml isn’t big enough? School doesn’t have refill facilities? 7YO DD’s water bottle is 350ml-ish and have a hard enough time persuading her to drink that!