I agree that it is somewhat heavy. However, the ability to access water is kind of important, and this is a tool that allows people to do just that from an atypical source. I am up in the air if I want to carry one as I am only a single person. If I were in a group, we would most definitely have one amongst us. I also have hiking pants that have lots of cargo pockets. I plan on carrying certain items that are somewhat heavy or frequently accessed in my pockets (Leatherman, Altoids Fire kit, compass, etc.). This key could be kept in a thigh pocket. Carrying loads is all about how they are dispersed upon your body. My structural firefighting gear weighs about 70 pounds before I even pick up a tool. However, that gear is distributed across my body, and it does not feel as heavy as a result. I am still not going to win races while in it, but I can move fairly quickly if needed.