Having access to water is essential to sustain life, and safe drinking water is essential if you do not want to contract diseases. You have two main options for safe drinking water, either carry it with you from a potable source, or purify water you find outdoors yourself. Camping water bottles come in a range of different material and sizes, from stainless steel to titanium and plastic. If you want to carry hot food or drinks, then vacuum insulated flasks are ideal as they can be made well in advance of when they are needed. Some people will want to be carrying as little weight as possible, so treating water at source is a lightweight option through chemical, UV light and filter products.