Kevala

Kevala was a mysterious metal designed and forged by the Sorians. Said to be a synthesized combination of beskar and cortosis, Kevala is impenetrable by most projectile, melee, and energy weapons, including lightsabers. The Sorians use Kevala to make body armor, ship hulls, and vehicle and weapon plating.

Creation
Around the time of the Great Galactic war, the Sorians knew they had to design a replacement for their old fashioned hide and steel armor. Since combat with Sith Lords was a common occurrence during the Great Galactic War, the Sorians knew they needed something that was not only light, but also lightsaber resistant.