What was the t-shirt Tupac was wearing?

Strange topic of all things I know. I just happened to watch the movie last night for the first time (thought it was good too by the way), and I thought the t-shirt Tupac was wearing near the start of the film and throughout (just underneath the button up and leather jacket) was great. I think I may have seen the design before. The t-shirt I'm talking about was primarily white, but the front had a faded yellow and colour design/picture. It just looked like such a good quality shirt in the sense that the sleeves and collar were in perfect proportion and the design was not too brash but understated while still being unique and different.

I know this is really a long shot, but I figured of all places to ask, this message board is probably my best chance - unless of course I was able to somehow ask the person(s) responsible for the character's wardrobes.

Thanks everyone in advance.

As for Gridlock'd, as I say, a good movie and without a doubt the most entertaining aspect was the chemistry between Roth and Shakur. Not to mention the well placed comedy at times, it looked like they really had a blast making the film, which always makes it more enjoyable for the viewer. :D