Poor guy. It's a little hard to tell what's going on here, exactly, but it looks to be the results of a deep sea exploration gone wrong; a skull forever trapped in a Mark V helmet for all time. Of course, it could just be another clever way to get one more skull shirt out there!
Semi-Important Teextile Note..
teextile is changing their shirt brand from American Apparel to Tultex. Apparently there's not much different in these brands (see a discussion here), but just a heads up that starting this week, they're changing tee blanks!