Migrator Cape

Migrator is a Java Edition cape for moving a Mojang account to a Microsoft account. How do you get it? Migrate your old Mojang or legacy account during the migration that Mojang announced on 21 October 2020 and ran until the last accounts were moved in 2023. Everyone who completed the move got the cape.

It was the first cape handed out in large numbers without an in-person event, which is why it shows up on so many Java profiles and has no collector value to speak of.

Bedrock never had it, because Bedrock accounts were Microsoft accounts from the start. Details on the Minecraft Wiki.