NO BS - Unisex Murph SocksAmerican artist Rick Griffin was one of the leading designers of psychedelic posters in the 1960s. As a contributor to the underground comix movement, his work appeared regularly in Zap Comix. Griffin was closely identified with the Grateful Dead, designing some of their best known posters and album covers. He is also legendary within surfing subculture for his comic strip, Murphy. 87. 5% Polyester, 8% Cotton, 4. 5% Spandex