This premium flax, collapsible water bag was designed to provide cold drinking water for our troops in the original war in Iraq, Desert Storm. It holds about one gallon of water and keeps the water cool via evaporation. Works like the old radiator bags from the glory days of route 66. Built to rugged military specs it will give years of service and will pay for itself many times over by providing cold water without ice, in any type of weather. It includes a pair of straps to hang the bag and a string to close the neck at the top of the bag. The bag is 20 inches long and 8 1/2 inches wide.