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 Regarding Dean (12x11), Dean wears this to the witches house, when he and Rowena go to rescue Sam – and at the end of the episode, when he and Sam say goodbye to Rowena.
In The British Invasion (12x17), Dean wears this coat at the beginning of the episode, when he and Sam return to the Bunker with takeout and find Mick waiting for them, then subsequently whenever he is outside, and finally when they return to the Bunker after the hunt is over.
In War of the Worlds (13x07), Dean wears this jacket when they follow the witch to her safehouse and lie in wait to catch Ketch. He takes it off when they bring Ketch back to the Bunker for interrogation. Then wears it again when they leave to rescue Cas.
In ScoobyNatural (13x16), Dean wears his jacket for the entire episode (except a brief scene when he is in a cartoon nightgown in the mansion).