This Friday the 13th t-shirt shows a close up image of a hockey mask worn by Jason Voorhees. This has become one of the most frightening images in horror movies! Starting in Friday the 13th Part 3, Jason decided he needed a new look to scare the bejeezus out of Crystal Lake campers. Jason found a hockey mask, which became an iconic look for the killer, and he never stopped wearing a hockey mask when he went on his murder sprees. For any fan of the Friday the 13th franchise, this Jason Voorhees Mask Friday the 13th t-shirt is a must have!