I KNEW IT.
eta: thanks to kashmir1...
YES!
SAME FREAKING SHIRT.
Oh, come on, it is. It SO is. It looks a little darker in 2.04, but dude, those pockets. See how much darker John's looks in the screencap to the still up there? And Dean didn't have it before, the Laundry List says so. AND LOOK AT THE COLLAR-CURL ON THOSE LAST 2 IMAGES!!
And there's a big difference in colour-quality between a screencap of a file-compressed rip of an already colour-adjusted final product, and a relatively clean still image from the set.
HE IS.
Dean's wearing the shirt his Daddy died in. HE IS.
DEEEAN!
Or, okay, even if it isn't - it's exactly the same make and model, just slightly different tones. LOOK, IT IS, OK?