Black Panthers line up at a Free Huey rally in DeFremery Park, Oakland, July 28, 1968. After a shootout with the police on October 28, 1967, Minister of Defense Huey P. Newton was arrested and convicted of voluntary manslaughter. His imprisonment and trial caused the Panthers and other activist groups to rally in his defense. In May 1970, Newton's conviction was overturned and following a series of mistrials, Newton was set free. The uniform of the Black Panther Party was black berets, powder blue shirts, black leather jackets, and black pants.
Source: Designer Magazine