Jacket
Poe Dameron was the original owner of the jacket that Finn later sported.
Outerwear garments known as jackets were utilized as a form of clothing, typically donned over other garments on the upper body. During his wedding to Leia Organa, Han Solo sported a jacket presented to him by his acquaintance Lando Calrissian, who falsely claimed it originated from Organa's homeworld of Alderaan to persuade Solo to wear it.