recommendation for bike safety flag
 

Biking on Mexico 1 in Baja - looking for something (besides visable clothing, lighting....) for trucks to see me when I pull off the road to accommodate RVs, etc passing. Horizontal won't work as already insufficient clearance. Everything I see on Amazon, Temu has lousy reviews. Recommendations? Ideally, folds onto bike or into sections.

Mexican flags look like a good option:
https://cimg7.ibsrv.net/gimg/bikefor...2bc62e7d90.jpg
https://cimg8.ibsrv.net/gimg/bikefor...2e0bc431b9.jpg