Advanced Elements 5-Gallon Summer Shower

The Advanced Elements 5-Gallon Summer Shower is a solar-heated gravity shower bag. It holds 5 gallons of water in a 4-ply construction with a reflector panel and an insulator panel that retain heat, warming water to 110 degrees Fahrenheit in under 3 hours of direct sun.

It weighs 1 pound 4 ounces when empty and rolls up after use. It has an on/off showerhead, an extra-large twist-off filling valve, an easy-read temperature gauge, a toiletry pocket, and Velcro straps for wash cloths.

E-bike compatibility: no battery and no pump, just water, sun, and gravity. Under 1.5 pounds empty and rolls flat into a pannier.