I will never use another water bottle. We all have one and the kids each have 2. These are so durable, you drop them on concrete and they do NOT break. THe valves are replaceable when they get old. It all comes apart for great washing. I love the camelbaks that have fun designs for kiddos too.I only wish they made an airplane design or sports designs that are attractive to toddlers. My son adores planes and adores his camelbak. Add the two together and I would buy 20 just to have one everywhere he goes..... All in all you can not go wrong with Camelbak Eddys!