In my euphoria to have found the perfect product for my use, I did not pay attention to how small the neck of this bottle is actually. It was only when I wanted to put together the first pre-workout drink, I realized that in this bottle powder with a spoon pour not matter. Not even with a teaspoon. I have just made do me so that I have used a small funnel for filling.
The second fail this bottle I noticed after the training, that is, as I wanted to clean the bottle. Through the narrow neck, there is almost nothing or can this bottle only be cleaned with special tools, a clean dry is impossible. I then hold the bottle always open and upside down, in the kitchen kept but in the long run that's not ideal and after about 2 months it came as it had come: The bottle has begun in the interior to moldy though I had Only water-soluble powder used and have it rinsed always as good as it could be. The reason for this will probably have been the lasting moisture inside the bottle. I then disposed of immediately.
So for me this is a clear Nalgene water bottle from faulty design because it can be very cumbersome to not cleaned and dried. In almost daily use of this fact has led me to the bottle began to mold in the interior.