The Pocket Shower carries 10 liters in a 4.2-ounce roll-top nylon bag and supplies about eight minutes of gravity-fed flow through a twist-control showerhead. It packs much smaller than a tank and can double as a dry sack, making it the most realistic backpacking option here. It is not designed specifically for pets, requires a secure overhead support and careful lifting of about 22 pounds of water, and delivers far less pressure than a pump system.
