If you haven't already checked it out, see the link here to the new CreaFX mask: Kiara
https://www.creafx.com/en/special-make-up-effects/kiara-silicone-mask/
I would guess that they're using the same internal boning system as they did with the Carmen mask. So even though this mask may not look like much, I bet it's state of the art. I was very impressed with the Carmen mask (see below) so I would only assume that they're using the same technology for Carmen as they are with Kiara.