A Solar Shower is a very cool solar product that uses the sun to heat water for showers, washing dishes and general use. This kind of solar water heating kit is perfect for camping or RV-ing and it doesn’t use any electricity – just the power of the sun’s rays! The solar shower bag holds 5 gallons, has a flexible shower hose and an on/off spigot. You can just attach the Solar Shower in a tree in the sun or off the side of an RV, then wait a few hours for the sunlight to heat the water up. Solar shower bags are a very practical and clever solar product.