This female action figure came with rooted blonde hair and screen-colored bodysuit. The only accessories are her red cape and yellow belt. Note that earlier versions of the figure had the red shoes colored onto the bodysuit, while later versions come with red vinyl shoes (not boots).
Supergirl was part of Mego's World's Greatest Super-Gals line that debuted in 1974, part of their larger World's Greatest Super- Heroes line. The other three Gals were Wonder Woman, Batgirl, and Catwoman.
Supergirl first appeared in Action Comics #252, May 1959.