With children it needs more consideration:
The closure must be reliable and should not be half close.
The cleaning must be simple.
You should be able to easily control the purity, ie they should be transparent.
They should be robust.
You should visually appealing.
In addition to the criteria which always were:
You should not change the drink taste
Already at the last point covered by the meissten bottles and therefore I had no sooner made of plastic.
In this there is nothing to criticize, even after prolonged standing, stands a no odor when opening into the nose.
The very smooth material is easy to clean and very pleasant attack.
The closure has no fine crevices and angles make it difficult to clean. The rubber seal can pull out at the "major cleaning" and then you are absolutely sure.
In general, the cleaning goes in the dishwasher.
At the wide-mouth is no additional sealing required could be the break.
The drinking spout is quite far and you can drink it like a normal bottle and not only zuzeln.
The closure is pretty simple and manageable even our 4 year old. A little force is required
And last but not least they will survive a fall.
So even though I'm not a fan of plastic in the food industry, convinced me that bottle but even if robustness is desired especially for children more than anything else what I know or what I even tried.
Buy recommendation, also because the price is right.