Yet another blue plaid shirt – thanks for making my life difficult, Sam. This one has a bold horizontal, with diagonal plaid up the button seam. It looks a bit purple in certain lights. Most interestingly, it has buttons not snaps. The buttons are black with white just around the very edges. Version#2 has a small odd patch on the chest to the right of the button line.
NOTE: Wardrobe has more than one copy (of course) and the copies aren’t exactly the same, because the plaid intersects the button-line at different points. Despite this, and in the interest of making my life easier, I am going to count them as one shirt, but note which variation is used if I can tell.
In The Devil You Know (5x20), Sam wears it for the entire episode. (Version#1)
In The Third Man (6x03), Sam wears this shirt after he changes out of his suit and keeps it on until after the confrontation at Balthazar’s house. He changes for the final conversation between him and Dean. (Version #2)
In Let It Bleed (6x21), Sam is wearing it when he is getting a drink in Bobby’s kitchen and Balthazar shows up to help. He keeps it on for the rest of the episode. (Version#1)
In Pac-Man Fever (8x20), Sam is wearing this shirt when he and Dean realize that Charlie has gone missing. He wears it until they rescue her, but changes before they say goodbye. (Version #2)