For various leisure activities, we need a robust and small bottle that fits into our belt holster. In this bottle, we were able to find and also still Tasteless -also in hot weather, super. Small disadvantage in my eyes, the wide mouth, why you can not build here a normal bottle neck as the 1l bottle too ?! Can be drunk naturally anyway, and the function itself is not restricted, but not so comfortable. In the car, for example, you should not drink while driving, because a very small bumps well enough that something goes wrong. In my opinion, you can indeed use the accessory to this bottle, but why not make it so construct that you need any? Ok, since the industry is indeed money back through their fingers ....... but back to the bottle. Otherwise, just great and in the leisure activity when you do not have drink on the move, simply ingenious. For this restriction of use, there is then also the star deduction. And before I forget, the bottle is completely sealed!