Review on TrueCABLE Cat6 Shielded Riser (CMR) 500ft Gray Ethernet Cable 🔌 - 23AWG Solid Bare Copper, ETL Listed, 550MHz, Overall Foil Shield (FTP) by Jeff Kickthedogband

All foil shielding is just what you need - durable foil, not metalized mylar. Underneath the film is a transparent plastic (insulating) film. Under the foil is a thin tinned ground wire and four twisted pairs separated by a plastic groove. I don't understand why the ground wire is needed as it is insulated from the screen film. An efficient and reliable shield connection will be problematic.