Brand Info: These jackets are under the brand name "ALL SAINTS" and are the "Bale" style. "ALL SAINTS" is a British clothing company, and these jackets were only available in Fall/Winter of 2016.
In The Raid (12x14), Dean is wearing this coat when he returns to the Bunker to find Sam gone, and then discovers that they are out of booze, and then answers the door to find Ketch wanting to hang out. He takes it off when he actually drinks with Ketch, but then puts it back on when they go out to hunt vampires – wearing it for the rest of the episode.
In Various and Sundry Villains (13x12), Dean wears this coat when he goes out to get bear and ends up enchanted. He continues to wear it until Rowena releases him from the spell. He takes it off briefly while they talk with Rowena back at the Bunker, but then wears it again when they go out to track the book down. He takes off again once they are back home.
In Byzantium (14x08), Dean wears this jacket when he goes with Cas to try to find Sam when Sam leaves the bunker distraught.
In Jack in the Box (14x19), Dean wears this shirt to go cry in the woods.