Clone trooper armor, also known as clone armor or generation one armor, was the armor used by Galactic Republic clone troopers during the Clone Wars. Designed by Kaminoan armorsmiths, clone armor consisted of a set of form-fitting plastoid plates attached to a black body glove. It could withstand impacts, pressure, heat and acrid vapors, yet was vulnerable to a direct laser blast.
― Star Wars Fandom
The first version of clone armor was called Phase I clone trooper armor which was inspired by Mandalorian armor, most notably its helmet. Over the course of the war, improvements were made to the armor's design, creating lighter and stronger plates.