Cortosis

"My skin graft is a cortosis mesh–a holdover from the days when I advised manufacturers in the field late in the Clone Wars. I can assure you, young lady–every bolt you fire against me will carry directly into your friend."

- Count Denetrius Vidian reveals his skin graft is cortosis mesh

Cortosis was a material which could be made into a mesh which could conduct the energy from a blaster bolt. During the Clone Wars the cyborg business analyst Count Denetrius Vidian had a cortosis mesh skin graft installed on his body. Years later, when Vidian was attacked by the Jedi-in-hiding Kanan Jarrus and the Twi'lek pilot Hera Syndulla, the Count was able to utilise the graft to conduct energy from a blaster bolt fired by Syndulla into Jarrus, who Vidian was holding at the time.

Behind the scenes
Cortosis first appeared in I, Jedi a novel by Michael A. Stackpole released in 1998 which revealed it was a Lightsaber-resistant material. The material then appeared in numerous sources, which along with I, Jedi are all a part of the Star Wars Legends continuity and so not official canon. The material was then made canon when it appeared in A New Dawn, a novel by John Jackson Miller released in 2014.

Appearances

 * A New Dawn
 * "Darth Bane: Dynasty of Evil"