Throwback uniforms have become increasingly popular in recent years. In 2009, the original eight AFL teams, including the Patriots and Jets (who where then called the Titans of New York), wore their original uniforms in several games throughout the season.
In 2010, many teams, such as the Vikings and Falcons, wore throwback uniforms dating to the 1960s. And of course, the Lions and Cowboys have their traditional Thanksgiving throwbacks.