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.