The Pocket Shower(TM) is made of high quality, wear-resistant, waterproof 70D Nylon. The seams are fully taped and it features a roll-top closure. Built into the base is a compact shower head that operates with an easy-to-use on/off twist mechanism to adjust the flow of water. The black fabric soaks up the sun during the day at base camp for an 8 minute-ish warm shower. The Pocket Shower doubles as a dry sack for the trip to your base camp. The, when you arrive, it becomes a suprisingly effective backcountry shower. Allow water to warm in the sun, or add your own warm water (up to 140AdegF / 60AdegC). Super compact and light: zips into a pouch that measures only 3 in x 6 in and weighs just 4.3 ounces Gives about an 8-minute shower with shower head fully open Contoured shower head with graduated apertures for equal spray dispersion Simple and easy-to-use twist mechanism for turning on/off and for flow adjustment 20-foot cord included