The Superman shield, also known as the Superman logo, Superman symbol, or Superman S, is the iconic emblem for the DC Comics superhero Superman. As a representation of one of the first superheroes, it served as a template for character design decades after Superman's first appearance. The tradition of wearing a representative symbol on the chest was followed by many subsequent superheroes, including Batman, Spider-Man, Green Lantern, the Flash, Wonder Woman, Hawkman, and many others.
In its current form, the logo is a red capital "S" inside a pentagonal yellow stylized shield with a red border. In earlier Superman stories, "S" was simply an initial for "Superman", but in the 1978 film, it was portrayed as the family crest of the House of El, the family of Superman.
Evolution of the symbol
In its original inception in Action Comics #1, Superman's symbol was a letter S with red and blue on a yellow police badge symbol that resembled a shield. The symbol was first changed a few issues later in Action Comics #7. The shield varied over the first few years of the comics, and many times was nothing more than an inverted triangle with an S inside of it.[1]