This is a 20 litre solar shower: a black PVC bag you fill with water, leave in the sun and hang from a branch when it has warmed up. It is the cheapest way to get a wash at a campsite with no facilities, and the black bag is the whole technology.

• 20 litre capacity: enough for several people to rinse off, or one proper wash.
• Black PVC: the dark surface absorbs sunlight and heats the water inside it.
• Shower head and hose included: a plastic hose with a rose, so the flow is usable rather than a single stream.
• Hanging cord with hook: hangs from a branch, a roof bar or a tree.
• Packed size: Folds to around 26 by 15 by 5 cm when empty
• Not for drinking water
• No thermometer