The rule of three is an important adage in survival skills classes. That is that a person can only go 3 minutes without air, 3 hours without shelter, 3 days without water and 3 weeks without food. In most normal situations the most pressing rule is that of water. The problem is that carrying water is one of the biggest added pieces of weight a hiker or backpacker contends with. Enter the Platypus Softbottle. Made of tough, durable, yet light and flexible, food grade BPA free plastics, this soft water bottle is the lightest water storage option on the market today. Plus when not holding that life giving liquid you can roll and fold it up and fit it in your pocket and it weighs practically nothing. Also, at only $7.95 retail for the .5L option, it is an extremely affordable option for either backup or primary water storage. I usually bring a stainless steel water bottle with me on backpacking trips but also bring along at least one Platypus as well because it weighs almost nothing and gives me another water storage option should the other bottle break or if I have set up camp and just want more water available for cooking and drinking so I don’t have to make multiple trips to the spring or creek.
The only thing that prevents me from bringing only Platypus softbottles with me is that I do not know if you can boil water inside of one of them without ruining the bottle itself. I am sure that you could boil water in it but I would be worried that the bottle wouldn’t last for very long if you did, but if you are carrying another form of water purification like Chlorine Dioxide tablets or Iodine tablets you would be fine bringing only the soft water bottles and save some on weight too. Check out Cascades Designs website for other water storage and purification options by Platypus.