The vango solar shower is a lightweight and portable shower that holds up to 20 litres of water that is simply heated by the sun s rays so that you can feel fresh and clean while enjoying the great outdoor festival and camping season this summer this solar shower comes nice and compact all rolled up to make it easy to transport it is also very simple to use just fill it up with water using the large opening at the top and leave it laid out flat with the black side facing the sun for about 3 hour