Really, Sam? ANOTHER blue plaid shirt? Can’t you give a girl a break... sigh. This lovely blue plaid is broad and a bit loud. I find it amusing, because the way the white part joins across the chest and the pockets makes it look like someone decided to purposefully connect Sam’s nipples. :P
Sam first wears this shirt in I’m No Angel (9x03), at the end of the episode when everyone is back at the Bunker, and Gadreel asks Dean to send Castiel away again.