Two liters of water weighs about 4.4 pounds. A three-day supply for one adult — a minimum of 6 liters — weighs over 13 pounds. In a go-bag, that's most of your weight budget.
The solution is to carry a baseline supply (2–3 liters) and supplement it with a lightweight filter that lets you get water from almost any fresh source.
Next StepsUse the related guides below to keep building. Download the free checklist pack for printable reference.