A beautiful bottle Also Like many children in the playground. Compared to other similar bottles can be this good clean. The valve but you have now and then clean with a cotton ear swabs, if you are also juices and spritzers for drinking because accumulate in the grooves deposits (I do not dare to clean the valve in a dishwasher, as it is made of soft material ). Our daughter drink it very well and a lot. No 5 star but there are, because the bottle runs out from time to time. UA because the valve of the shutter is released (unfortunately you can not seperate the valve buy more) and also from other inexplicable reasons, although we always close the bottle well. It's annoying when the bag gets wet inside. Too bad, because otherwise it would be the perfect bottle.