Mark II stormtrooper armor

Mark II stormtrooper armor was a model of armor worn by stormtroopers within the Fel Empire and local Imperial splinter states. It was introduced in 125 ABY, and gradually replaced the Mark I model, which was 144 years old by the introduction of the Mark II. Mark II variants were designed for non-humanoid species as well, including Wookiees, Talz, and Trandoshans. After the Fel Empire merged with the Galactic Federation of Free Alliances, Mark II stormtrooper armor became the standard issue equipment for all members of the Imperial Army, and certain special forces units within the Federal Army.

Characteristics
Mark II stormtrooper armor was very similar to its predecessor, though was lighter, slightly more durable, and its helmet had a much more advanced communications system and heads-up display, which included a targeting system. Like the previous model, stormtrooper officers and specialists typically wore metallic (or, in the case of special forces, leather) pauldrons with specific colors or patterns denoting rank, unit, and/or combat role. Stormtroopers were not typically allowed to add other colors or markings to their armor, though certain stormtrooper variants were exempted from this regulation.