Another entry in my #MojaveRoad series because I’m too lazy to write it all down at once (original article here).
It’s not fancy, it’s not sophisticated, and it really only works best in warm and windless conditions. But if you’re looking for a simple shower, consider this.

They key ingredients of this is (obviously) straightforward.
First, you need a way to get a solar shower up in the air. A big stick I had ontop of the roof basket worked great, the tail end strapped down with a bungie. A folded up camp chair, a shovel, or a hi-lift would work great too.
You want something other than dirt to stand on, but lucky for you I’m sure you carry a piece of wood for putting under a jack so that works just great.
Try to anticipate your showering if you’re using a solar shower: deciding to shower “now” means cold water. Deciding you want to shower later in the day means warm water.
Flatter sun showers work better to strap down on a roof rack (prior to your shower) than my smaller/ligher version pictured. I’m still not sold on the idea of strapping a full shower to the rook basket while bouncing around driving in technical terrain as I think it’s a great way to rip/thrash/bounce the bag to death. But on flat roads or stopped, it’s a great idea.