ShowerBag

“Built into the base is a compact showerhead that operates with an easy-to-use on/off twist mechanism. The twist spout also serves to adjust the flow of water, delivering an efficient trickle to a free-flowing shower. Fill the 10 Liter (2.6 gallon) Pocket Shower, roll it to close at the top and hang it from two tough Delrin D rings with the 20 feet of lightweight cord provided. The black fabric soaks up sun during the day at basecamp for a warm shower or fill it at the end of the day for a cool rinse.”

Available at Amazon – $29.95