Premium materials-This shower bag is made with environmentally friendly materials and prevents leaks. The materials used are safe for human health and make the bag very durable. Large water capacity-This useful bag can easily carry up to 40 liters of water for showering in remote places. A refreshing shower wherever you are. Smart design with heat absorption-PVC material can effectively absorb solar energy to heat water in the bag. It heats water to 45C in 3 hours with direct sunlight. There is a temperature indicator (C/F) attached to the bag. Water temperature will no longer be a mystery, even in the most remote places. This advanced shower head features an on/off switch easy with low to high water flow. Gives you a much better shower experience.