I guess it's possible because we live in the future! (now where's my damn jetpack...no, wait, I mean molecular transporter. And my replicator! Can't forget my replicator. Can I borrow $20? I promise to give it right back! :lol: )
Not such a big stretch to imagine transluscence and retroreflectivity at the same time. We've had it for decades in hard plastic (think of combination side marker light/reflector units, for example). The difference is that the new stuff is thin and flexible, as I understand it. I'll try and get more info and report. In the meantime, look at this what Grote announces.