Lentopellin

Lentopellin is a fictional material appearing in the science fiction novel "The Expanse" by James S. A. Corey. It is a type of advanced armor plating used by starships in the series, renowned for its exceptional durability and resistance to damage. Lentopellin is depicted as a layered composite, incorporating various exotic materials and energy-dispersing properties that make it incredibly difficult to penetrate, even with advanced weaponry.

The effectiveness of lentopellin is a recurring plot point, often highlighting the technological disparity between factions and the challenges faced by those without access to such advanced defenses. Ships equipped with lentopellin are significantly more survivable in combat, able to withstand barrages that would cripple or destroy less protected vessels. Its development and deployment are tied to the advanced technological capabilities of certain groups within the "The Expanse" universe, contributing to their military advantage.

While its exact composition remains largely a mystery within the narrative, lentopellin is consistently portrayed as a top-tier defensive material. Its presence underscores the importance of material science and engineering in the futuristic setting of the series, where the ability to protect a vessel can be the deciding factor in interstellar conflict.