These are great bags for when you are out away from the masses and need to have something to clean up with. Great for outdoors man, sportsman, construction sites, and anywhere that access to clean water is at a minimum.
Leave it in your vehicle or just on a flat surface like a table when you are out and when you return the Sun will have heated up your water to the point that you can wash your hands or event take a shower. Be careful if you put it in your Car in the Desert it may be too hot. You will need to mix it with some cold water to make sure you don't burn yourself.
At this price you may want to order several of them.