The Hydro Kit by Survival Metrics enables the capture of potable water from non-poisonous plants via solar action. Especially useful in arid areas where ground and surface water is not available. The age-old practice of extracting potable water from plants is maximized using this kit by the incorporation of optically clear, high density 25 gallon water extraction bags that allow up to 92% sunlight penetration. Essentially, plants release water to the atmosphere by the process of transpiration, triggered by exposure to certain wavelengths of light. The proper use of these bags allows that water vapor to be captured, condensed, and collected for the survivor to drink. If not needed for water procurement, the bags can be used in emergency shelter construction and protection from the elements. Small and lightweight, the kit is a valuable addition to your survival or emergency preparedness kit.