Super light weight rain jacket

It's always helpful to have a light weight rain jacket in the backpack no matter where you are. (Yes, it rains even in the desert sometimes). I always have something like this that lives in my backpack permanently.  It’s lightweight, cheap and gets the job done.  

Only 12 dollars.

Of course, I would prepare something more heavy duty if I know I’ll be working in the rain all day long.

Get this one from Decathlon $12