Rated 2 out of 5 on
The mouthpiece doesn't stay flat once placed down, and sometimes I find that it sort of raises up about 10-20 degrees, within 30 seconds of pushing it down, meaning that water can leak out of the mouthpiece. I have to ensure that the bottle is always positioned upright to be certain there won't be any leaks. Probably better for older children who can ensure the mouthpiece is secure once they have closed it.
