Getting stuck outdoors without a hot drink is not fun. The Solar Kettle can help. It is a survival thermal flask that uses sunlight to boil your water. It can warm up in 20 minutes and reach boiling point in about an hour depending on sunlight intensity.
The Solar Kettle has 500ml capacity. It weighs 18.5 x 4″, weighing 2.5lb. The kettle is cold to touch on the outside but gets quite hot inside. The Solar Kettle has a fold-out arm and legs, so you can take it anywhere and set it up in a flash.