Xenylon was an algae-based synthetic material used in the Federation to make Starfleet uniforms. (TAS episode: "The Terratin Incident")

It was waterproof (TOS novel: Death's Angel) and fireproof (TOS movie: Star Trek VI: The Undiscovered Country; TNG novel: Power Hungry), but could tear quite easily. (TOS episode: "The Savage Curtain")

External linkEdit

• Xenylon article at Memory Alpha, the wiki for canon Star Trek.