Portable solar showers are bags of water with a hose attached that heat the water using the warmth of the sun, delivering hot water for a shower. Solar showers are usually sold for use on camping trips, though some people enjoy using them in their daily life for environmental reasons.
Solar showers don't use electricity, and the bags of solar showers are usually black to better absorb as much heat from the sun as possible. This heating process takes some time, and smaller solar showers heat up faster than larger ones. Hanging a portable solar shower on a high object, such as a tree branch, ensures that water coming out of the hose is somewhat pressurized, creating a more effective shower.