Character posters; https://www.starwarsnewsnet.com/2019/10/the-mandalorian-first-episode-to-reportedly-contain-a-dramatic-spoiler-and-disney-plus-unveils-new-character-posters.html
An interesting details that was mentioned by Star Wars Explained was that the Mandalorian’s armor changes throughout the trailers, implying that he makes good use to the Beskar (“Mandalorian iron”) throughout the first season. The second trailer also emphasizes just how useful the beskar is against blasterfire.
The armor shown in the image below must be from late in the season as all of his reddish armor-plates has been entirely replaced with shiny beskar.
