Can you fold a banner without getting it wrinkled and seeing creases at the folds?
Vinyl banners can be folded but will leave creases along the fold lines. While you can let the banner hang to see if the creases will work themselves out, there isn't much that can be done to facilitate otherwise.
In contrast, fabric banners, are very lightweight and wrinkle resistant and can be easily folded for transport. If you need a wrinkle free banner, the best option is the fabric material.