Very intriguing. Have you compared them to other parts of the video as well?I threw together a quick and dirty YT short on a possible shoe match: Ecco Golf LT1.
I'm very aware that IR light can mess with colors (e.g., the shoe could be all black), but this particular model seems to align in more ways that one.
Could be interesting if the guy was wearing golf shoes. Obvously, I'm not a golfer (obligatory Lebowski), so I have no idea of why one would wear a spikeless golf shoe while not golfing. Do you think this could be the shoe?