These are fabric with a felt-texture. They aren't even faux-suede. (see photo)
Fine for a stage-prop, and may appear "suede" from about 20 feet, but these are plain felt fabric.
They have a line of velcro that runs vertically behind the "buttons".
The image also shows the bottom covering the top of the boots, but mine came straight down and did not flare out in any way to do as the pictures show.