Doing a bit of research into the hotly debated topic of pattern-matching on shirts and found this insightful post from Cruz Diez on the topic, which I'm bumping for those whose interest remains unsated.
http://www.filmnoirbuff.com/forum/viewtopic.php?id=1105
Pattern Matching on the shoulder is for pre-K4.
Can we get a better view of the t-shirt?