When the school bell rings again, the annual logistical operation begins: a new bag, new sneakers, a new lunch box – and, of course, a new water bottle. While it may seem like the smallest purchase on the list, the wrong choice can mean spilled water in the bag, a crying child and soaked textbooks. A good bottle is not just a container for liquids, but a little everyday lifesaver that keeps the child hydrated, the parents calm and the bag dry. These are the best water bottles for kids.