The material is super. The drink does not taste like plastic - which I find very important.
The lid is tight - but something of - there's absolutely nothing to complain about.
The capacity of 700 ml perfect for me
The bottles fit into the bike mount and also in the devices in the car
One can also bottle lying or inclined transport - it runs from nothing
The "Press & drink" is easy. - Even just while driving
The bottle is not quite cheap, but the investment is worth it all
I just do not know what this ring should be on the cover. If someone has the time and inclination, he can tell me yes times