Like all products of the brand, I am pleasantly surprised and conquered. Unfortunately, a downside spoils it: the tip is not flexible and disturbs my son. As it has only 7 months, he may be accustomed to it eventually, but it is not yet the case. Otherwise, delighted with this truly effective anti-leak system! And ride in the bag, no drop out. The format is very well, fairly small but wide, it can hold a good amount of water. The small handles are nice, well designed and very pleasant to the touch and the material that the baby hands held without difficulty, even when wet.